taxonID	type	description	language	source
324187BE3B214C40FDA2FDAC9CB1CE2D.taxon	diagnosis	Expanded diagnosis Head short and depressed; gena narrow, in frontal view not bulging behind eyes. Mandible small, subbasally swollen, with basal, transverse groove. Malar sulcus indistinct. Maxillary palp reaching base of hind coxa or almost so. Antenna slightly shorter to distinctly longer than body, strongly enlarged and somewhat flattened at midlength, ventral face distinctly flattened, lighter in colour. Occipital carina reaching base of mandible. Mesosoma stout, short to moderately long, but always somewhat obliquely sloped. Sternaulus shallow, complete or distinct only on anterior 0.5. Episternal scrobe deep or shallow. Hind tibia gradually and distinctly enlarged towards apex. Hind tarsal claws very small. Areola fused with petiolar area; median longitudinal carinae, when present, parallel. Forewing crossvein 2 m-cu inclivous, with one bulla. T 1 1.5 – 2.5 times as long as apically broad, without median dorsal carina. Ovipositor very slender, needle-like, as long as 0.20 – 3.50 of hind basitarsus.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B214C40FDA2FDAC9CB1CE2D.taxon	discussion	Remarks The most readily recognizable diagnostic feature of Palpostilpnus is the very long maxillary palp, reaching the base of the hind coxa. Although very characteristic, this trait is not unique of Palpostilpnus: most of the genera placed in Townes’ subtribe Chiroticina show somewhat elongated palpi. Palpostilpnus can be readily differentiated from these taxa by having the mandible small and slender, with a basal transverse groove, and a very slender, needle-like ovipositor. Since P. rufinator (Aubert, 1961) stat. rev. also shows all these character states, and bears much more morphological and biogeographical affinities with the remaining species of Palpostilpnus than with Townostilpnus chagrinator Aubert, 1961 (Aubert 1961, 1980; Di Giovanni & Scaramozzino 2019), we hereby transfer it back to Palpostilpnus. The characteristic body shape is another diagnostic feature of Palpostilpnus, with the head being short and depressed, and the mesosoma stout and obliquely sloped. The PCA derived from geometric morphometric data (Fig. 4 B) clearly shows that the shape of the mesosoma in species of this genus is fairly distinct from all other analyzed species. The results also support the division of the species recognized as Palpostilpnus into two reasonably clear species groups. Both show the distinctive features of the genus such as the long palp, the needle-like ovipositor and the obliquely sloped mesosoma. However, one group shows a somewhat elongated (more than 1.4 times as long as its height) and strongly slanted mesosoma (e. g., P. ranui sp. nov.), while in the other group the mesosoma is very short, stout (1.25 – 1.4 times as long as its height) and only slightly obliquely slanted (e. g., P. singaporensis sp. nov.). While it is unclear whether these two groups represent reciprocally monophyletic units, we suggest that they are informally designated as two species groups: (1) the palpator group for the “ stout ” species, including P. angkor sp. nov., P. brevis, P. maculatus, P. palpator (Aubert, 1961), P. papuator, P. rufinator stat. rev., P. singaporensis sp. nov. and P. striator; (2) the hainanensis group for the “ elongated ” species, including P. aki sp. nov., P. angka sp. nov., P. hainanensis sp. nov., P. mangrovi sp. nov., P. pterodactylus sp. nov., P. ranui sp. nov., P. rotundatus, P. tamasek sp. nov. and P. trifolium sp. nov. We have also encountered specimens that show a similar habitus to the species of Palpostilpnus recognized herein, with a depressed head and a short, stout, obliquely sloped mesosoma. However, these species lack the long palpi observed in the species of this genus. Hence, we prefer to wait for a comprehensive phylogenetic assessment of the species of Palpostilpnus and similar taxa before deciding upon the placement of these species.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B214C40FDA2FDAC9CB1CE2D.taxon	biology_ecology	Biology Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B214C40FDA2FDAC9CB1CE2D.taxon	distribution	Distribution Oriental and Australasian. Known species are recorded from Brunei, China (Hainan, Hong Kong, Jiangxi, Yunnan), Indonesia (Sulawesi), Malaysia (Sarawak), Philippines, Singapore and Thailand in the Oriental region and Papua New Guinea in the Australasian region.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	description	Figs 5 – 6	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	diagnosis	Diagnosis Body obliquely elongate (Fig. 5 A). Postero-ocellar distance 1.5 times as long as ocular-ocellar distance (Fig. 6 G). Occipital carina complete. Epomia absent. Epicnemial carina present on lower half of mesopleuron. Propodeal carinae absent except for posterior portion of median longitudinal carina (Fig. 6 C). T 1 2.35 times as long as apically broad (Fig. 6 A). Wings hyaline (Fig. 6 H).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	etymology	Etymology This species is named after Dr. Akihiro Nakamura of the Xishuangbanna Tropical Botanical Garden.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	materials_examined	Material examined Holotype CHINA • ♀; Yunnan, Ailao Shan; 2200 m a. s. l.; Plot B; Malaise trap 323 XTBG; Aug. 2011; A. Nakamura et al. leg.; KIZ.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	description	Description Female SIZE. Fore wing length 3.41 mm. Body oblique elongate, 1.42 times as long as its height (Fig. 5 A). HEAD. Face 1.7 times as broad as high, with moderately dense setae, strongly granulose and densely punctate, centrally weakly convex (Fig. 6 B). Clypeal suture indistinct. Clypeus slightly convex, with basal half granulose and apical half weakly transversely striate, apical margin sharp, slightly convex. Mandible polished, sparely setose, with dorsal tooth slightly longer than ventral tooth. Malar space nearly polished, 1.14 times as long as mandibular basal width. Gena glossy, sparsely punctate. Vertex punctate, posterior portion from posterior ocelli to occipital carina steeply slanted. Frons densely punctate, with lower half transversely rugose. Postero-ocellar distance 1.5 times as long as ocular-ocellar distance. Antenna shorter than body length, with 24 flagellomeres, ventral side from eighth flagellomere to apex flattened and thickened (Fig. 6 F). Occipital carina complete. MESOSOMA. Pronotum ventrally smooth, dorsally distinctly punctate. Epomia absent. Mesoscutum ovoid, 0.8 times as long as wide, weakly convex, with leathery texture and dense punctures (Fig. 5 E). Notaulus absent (Fig. 5 C). Scutellum slightly evenly convex, shallowly punctate, with apex polished. Postscutellum polished, with scattered punctures. Mesopleuron polished, sparsely punctate, area above dorsal end of epicnemial carina smooth and weakly rugose (Fig. 5 C). Epicnemial carina reaching to dorsal 0.5 of mesopleuron (Fig. 5 C). Sternaulus absent (Fig. 5 C). Metapleuron punctuate and setose, punctures closed. Juxtacoxal carina absent. Submetapleural carina complete. Fore wing with 1 cu-a distad of M becoming Rs by 0.3 of length of 1 cu-a, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a (Fig. 6 H). Hind wing with cu-a strongly inclivous and interrupted at lower 0.18. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa with sparse punctures. Hind femur stout, 2.6 times as long as its maximum width (Fig. 6 D). Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.4 times length of hind basitarsus. Propodeum gradually sloping in lateral view, shallowly punctate, punctures dense on central area and metapleuron, sparser on lateral portion of propodeum. Propodeal carinae absent except for apical portion of median longitudinal carina (Fig. 6 C). METASOMA. T 1 2.35 times as long as apically broad, petiole flattened, smooth, centrally with scattered punctures; postpetiole densely punctate, without dorsolateral or median dorsal carinae; ventrolateral carina weak; spiracle small and slightly projected (Figs 5 D, 6 A). T 2 coarsely and densely punctate (Fig. 6 A). T 3 – T 5 coarsely and densely punctate, punctures closer than those of T 2 (Fig. 6 B). T 6 mostly finely and sparsely punctate, centrally polished. Ovipositor very thin, 1.32 times as long as hind basitarsus (Fig. 6 E). COLOUR. Head black. Mandible whitish yellow with teeth apically yellowish brown. Palpi white. Antenna black brown, scape yellowish brown, ventral side of petiole light brown, ventral side from eighth flagellomere to apex brown. Mesosoma yellowish brown, mesoscutum centrally and laterally black brown; apex of scutellum fuscous; mesopleuron with epicnemium black; basal half of propodeum fuscous and central area from base to apex black. Fore and middle legs brownish yellow, fore and middle trochanters whitish yellow, mid tibia and tarsus very lightly fuscous; hind coxa brownish yellow, trochanter fuscous, hind femur brownish yellow with apical 0.3 fuscous, hind tibia fuscous with basal 0.5 whitish yellow; hind tarsus fuscous with basal half of basitarsus and ventral sides of second to fifth segments brownish yellow. T 1 entirely black; T 2 with basal half and apical margin whitish yellow, with a transverse black band behind middle; T 3 – T 4 black brown with basal and apical margins whitish yellow. Wings hyaline, veins and stigma fuscous. Ovipositor sheath slightly fuscous. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	discussion	Remarks This species is similar to P. rotundatus Sheng & Sun, 2013, but differs from it by the absence of the median propodeal longitudinal carina (Fig. 6 C). It is also similar to P. trifolium sp. nov. and P. tamasek sp. nov., from which it differs by the entirely reddish anterior and lateral part of the mesonotum (Fig. 5 E) and entirely reddish scutellum (vs black anterior and yellowish lateral part of mesonotum and black scutellum in the latter species) and by the long T 1 (2.35 times as long as apically broad, vs 1.8 – 1.9 times as long as apically broad in P. trifolium sp. nov. and P. tamasek sp. nov.).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B204C45FD54FC6D9E3CCAAF.taxon	distribution	Distribution China (Yunnan).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B244C59FDB9FEFC9E90C9A7.taxon	description	Figs 7 – 8	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B244C59FDB9FEFC9E90C9A7.taxon	diagnosis	Diagnosis Body oblique elongate (Fig. 7 A). Postero-ocellar distance 2.0 times as long as ocular-ocellar distance (Fig. 8 G). Occipital carina complete. Epomia distinct. Epicnemial carina distinct, reaching to upper 0.6 of mesopleuron. Carinae of propodeum absent, with pleural carina present posteriorly, sparsely punctate (Fig. 8 C). T 1 1.75 times as long as apically broad. Wings hyaline. T 2 – T 5 centrally with a transverse black band (Fig. 8 B). Etymology The species name refers to Doi Ang Ka (Thai: ดอยอ ่ างขาง), the former name of the type locality, Doi Inthanon.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B244C59FDB9FEFC9E90C9A7.taxon	materials_examined	Material examined Holotype THAILAND • ♀; Chiang Mai, Doi Inthanon National Park, Chomthong; 18 ° 32 ′ 20.5 ″ N, 98 ° 36 ′ 05.3 ″ E; 710 m a. s. l.; Malaise trap QSBG 2014 - 242; 27 Aug. – 29 Sep. 2014; R. Sawkord, T. Somboonchai and S. Suriya leg.; QSBG.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B244C59FDB9FEFC9E90C9A7.taxon	description	Description Female SIZE. Fore wing length 3.1 mm. Body oblique elongate, 1.50 times as long as its height (Fig. 7 A). HEAD. Face 1.6 as broad as high, with moderately dense setae, granulose and punctate, centrally slightly longitudinally concave (Fig. 7 B). Clypeal suture absent. Clypeus slightly convex, with fine striations, apical margin weakly rounded. Mandible polished, sparely setose, with upper tooth slightly broader than lower tooth (Fig. 7 B). Malar space 0.83 times as long as mandibular basal width. Gena polished, with separated minute punctures. Vertex rugose-punctate, almost vertically slanted behind posterior ocelli (Fig. 8 G). Frons punctate, with granulose texture between punctures. Postero-ocellar distance 2.0 times as long as ocular-ocellar distance. Antenna shorter than body length, with 24 flagellomeres, moderately thickened and ventrally flattened from fifth to sixteenth flagellomeres, first flagellomere 3.80 times as long as its apical width and 1.25 times as long as second flagellomere (Fig. 8 F). Occipital carina complete. MESOSOMA. Pronotum ventrally smooth, dorsally distinctly rugose and punctate. Epomia distinct. Mesoscutum ovoid, 0.75 times as long as wide, with granulose texture and punctate. Notaulus absent (Fig. 7 A). Scutellum flattened, sparsely punctate. Postscutellum polished, with scattered punctures. Mesopleuron punctate dorsally and ventrally, centrally with an oblique smooth area (Fig. 7 A). Epicnemial carina distinct, reaching to upper 0.6 of mesopleuron (Fig. 7 A). Sternaulus absent (Fig. 7 A). Metapleuron sparsely punctate. Juxtacoxal carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu equal to that of 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.2. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa with sparse punctures. Hind femur stout, 3.3 times as long as its maximum width (Fig. 8 D). Basal portion of hind tibia slender, sharply thick toward apex. Longer spur of hind tibia 0.46 times as long as hind basitarsus. Propodeum gradually sloping in lateral view, punctate. Propodeal carinae absent except carina of area postero-externa (Fig. 8 C). METASOMA. T 1 1.75 times as long as apically broad, petiole flattened, smooth, centrally with scattered punctures; postpetiole sparsely punctate, with dorsolateral or median dorsal carinae; ventrolateral carina distinct; spiracle small and rather projected (Fig. 7 D). T 2 coarsely and densely punctate (Figs 7 D, 8 A). T 3 – T 5 coarsely and densely punctate (Fig. 8 B). Ovipositor very thin, 0.6 times as long as hind basitarsus (Fig. 8 E). COLOUR. Head black. Mandible yellowish with apical tooth dark brown. Antenna black, scape whitish yellow, first and second flagellomeres fuscous, ventral sides of sixth to twenty-second flagellomere sandy-brown. Palpi whitish yellow. Mesosoma light testaceous. Legs testaceous, fore coxa and trochanter ivory, apex of hind femur fuscous; hind tibia with apical 0.3 fuscous. T 1 testaceous with apex dark brown; T 2 to T 4 testaceous and with a transverse black band, T 5 testaceous. Ovipositor sheath fuscous. Wings hyaline, veins and stigma fuscous. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B244C59FDB9FEFC9E90C9A7.taxon	discussion	Remarks This species is similar to P. hainanensis sp. nov. and P. singaporensis sp. nov., but it differs from P. hainanensis sp. nov. by having T 2 to T 5 with transverse black bands (vs T 2 with light brown band, T 3 to T 5 with a pair of brown spots laterally); hind femur with apex black (not black in P. hainanensis sp. nov.); meosoma entirely yellow (vs yellow with lower side of mesopleuron and propleuron black). It differs from P. singaporensis sp. nov. by having a shorter T 1 (1.75 times as long as apically broad vs 2.0 times as long as apically broad).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B244C59FDB9FEFC9E90C9A7.taxon	distribution	Distribution Thailand (Chiang Mai).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	description	Figs 9 – 10	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	diagnosis	Diagnosis Body obliquely elongate (Fig. 9 A). Postero-ocellar distance 3.0 times as long as ocular-ocellar distance (Fig. 10 G). Occipital carina complete. Epomia indistinct. Epicnemial carina distinct, reaching to upper 0.7 of mesopleuron. Propodeal carinae absent. T 1 1.8 times as long as apically broad (Fig. 9 D). Wings hyaline (Fig. 10 H).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	etymology	Etymology The specific name is derived from the type locality, Hainan Island.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	materials_examined	Material examined Holotype CHINA • ♀; Hainan, Bawangling Nature Reserve; sweep net; 21 – 22 Oct. 2008; Jieming Yao leg.; SCAU.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	description	Description Female SIZE. Fore wing length 3.5 mm. Body oblique elongate, 1.60 times as long as high (Fig. 9 A). HEAD. Face 1.6 times as broad as high, with moderately dense setae, slightly granulose and densely punctate, sublateral portion slightly longitudinally concave, centrally weakly convex (Fig. 9 B). Clypeal suture very indistinct. Clypeus slightly convex, shiny, with weak transverse striation, apically straight (not evenly convex downwards) with sharp apical margin. Mandible polished, sparsely setose, with teeth sharp, upper tooth slightly broader than lower tooth. Malar space nearly polished, equal to mandibular width. Gena glossy, polished. Vertex (Fig. 10 G) smooth, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 3.0 times as long as ocularocellar distance (Fig. 10 G). Frons with fine leathery texture, lower portion slightly concave. Antenna as long as body, with 24 flagellomeres, median portion rather thickened, first flagellomere 3.5 times as long as its apical width and 1.27 times as long as second flagellomere. Occipital carina complete, tapered upwards. MESOSOMA. Pronotum smooth, sparsely and shallowly punctate. Epomia indistinct. Mesoscutum ovoid, 0.8 times as long as broad, convex, with fine leathery texture and indistinct punctures (Fig. 9 E). Notaulus indistinct (Fig. 9 C). Scutellum evenly convex, almost smooth, with very weak and indistinct leathery texture, with shallow punctures. Postscutellum transverse, smooth. Mesopleuron polished, anterior portion with fine punctures, lower portion with punctures indistinct, pubescent with white setae; posterior portion with fine transverse wrinkles and fine indistinct punctures (Fig. 9 C). Epicnemial carina very short, defined only in lower portion of mesopleuron (Fig. 9 C). Sternaulus distinct, diagonally crossing mesopleuron from middle anterior part to hind lower margin of mesopleuron (Fig. 9 C). Metapleuron very long and narrow, with distinct shallow punctures, distance between punctures 0.2 – 3.0 times diameter of punctures. Juxtacoxal carina distinct. Submetapleural carina complete. Fore wing with 1 cu-a distad of M becoming Rs by 0.3 of length of 1 cu-a, 3 rs-m absent; distal abscissa of M spectral; length of vein Cu 1.4 times as long as 2 cu-a (Fig. 10 H). Hind wing with cu-a strongly inclivous and interrupted at lower 0.3. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa with fine and uneven punctures. Hind femur stout, 3.9 times as long as its maximum width (Fig. 10 D). Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.6 times as long as hind basitarsus. Propodeum gradually sloping in lateral view, with sparse fine punctures (Fig. 10 C). Propodeal carinae absent. METASOMA. T 1 1.8 times as long as apically broad, smooth, petiole flat; postpetiole broad, without median dorsal carina or dorsolateral carina; ventrolateral carina weak; spiracle small, round, slightly convex (Fig. 10 A – B). T 1 and T 2 coarsely and sparsely punctate (Fig. 10 B). T 3 coarsely and sparsely punctate (Fig. 10 B). Ovipositor very thin, 1.4 times as long as hind basitarsus (Fig. 10 E). COLOUR. Mostly yellow. Flagellomeres starting from third, head (except basal parts of mandibles and apical margin of clypeus), lower part of pronotum and mesopleuron, area of scuto-scutellar groove, apical portion of hind tibia and apical portion of fifth tarsomere, transverse marks in hind part of T 1, transverse mark of T 2 and ovipositor sheath black. Scape, pedicel, base of first flagellomere, mandible except teeth, maxillary and labial palpi, all coxae and trochanters yellowish white. Pterostigma and veins yellowish brown. Wings slightly yellowish hyaline. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	discussion	Remarks This species is similar to P. singaporensis sp. nov., from which it can be distinguished by the following combination of characters: metasoma almost entirely yellow (vs with broad transverse black bands) and ovipositor 1.4 times as long as hind basitarsus (vs 0.6 times in P. singaporensis sp. nov.).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B394C58FD9EFB0B9E39CAFA.taxon	distribution	Distribution China (Hainan).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	description	Figs 11 – 12	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	diagnosis	Diagnosis Body obliquely elongate (Fig. 11 A). Postero-ocellar distance 2.0 times as long as ocular-ocellar distance (Fig. 12 D). Occipital carina complete. Epomia indistinct. Epicnemial carina very short, defined only in lower portion of mesopleuron. Propodeal carinae absent, except forming area petiolaris (Fig. 12 B). T 1 1.8 times as long as apically broad (Fig. 11 C). Fore wing infuscate in middle (Fig. 12 E).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	etymology	Etymology The specific epithet refers to the habitat in which this species was collected.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	materials_examined	Material examined Holotype SINGAPORE • ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 00.3 ″ N, 103 ° 48 ′ 46.5 ″ E; Malaise trap (NS 1); 27 Jun. – 3 Jul. 2013; NUS leg.; barcode: ZRC _ 30042; LKCNHM. Paratypes SINGAPORE • 1 ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 04.2 ″ N, 103 ° 48 ′ 40.7 ″ E; Malaise trap (NS 2); 13 – 20 Jun. 2012; NUS leg.; barcode: ZRC _ BDP 0029983; NHRS PT-HEVA 000010858 • 1 ♀; Bukit Timah; 1.35127 ° N, 103.78161 ° E; maturing secondary forest; Malaise trap (BT 09); 20 – 27 Jul. 2017; NUS leg.; barcode: ZRC _ BDP 0018400; LKCNHM • 1 ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 07.83 ″ N, 103 ° 48 ′ 39.48 ″ E; Malaise trap # 3; 13 – 20 Mar. 2006; K. I. Yeo leg.; RBINS.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	description	Description Female SIZE. Fore wing length 2.3 mm. Body oblique elongate, 1.50 times as long as high (Fig. 11 A). HEAD. Face 1.5 times as broad as high, with moderately dense setae, longitudinally slightly convex centrally, forming rectangular area; with fine granulose texture, impunctate; sublateral portion slightly longitudinally concave (Fig. 11 B). Clypeal suture indistinct. Clypeus slightly convex, matte, apically straight (not evenly convex downwards), with sharp apical margin. Mandible basally with granulose texture; teeth sharp, upper tooth slightly broader than lower tooth. Malar space smooth, 1.5 times as long as mandibular width. Gena glossy, smooth. Vertex coarsely punctate, distance between punctures 0.5 – 2.0 times diameter of puncture, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave (Fig. 12 D). Frons with fine leathery texture, lower portion slightly concave. Postero-ocellar distance 3.0 times as long as ocular-ocellar distance. Antenna slightly longer than body, with 25 flagellomeres, median portion slightly thickened (Fig. 11 A). Occipital carina complete, tapered upwards. MESOSOMA. Pronotum coarsely punctate dorsally, smooth and shining ventrally. Epomia indistinct. Mesoscutum ovoid, 0.87 times as long as broad, comparatively convex, with coarse dense punctures. Notaulus indistinct. Scutellum evenly convex, with coarse dense punctures. Postscutellum transverse, smooth. Mesopleuron smooth, polished, shallowly and sparsely punctate, pubescent with white setae. Epicnemial carina very short, defined only on lower portion of mesopleuron. Sternaulus indistinct. Metapleuron very long and narrow, with distinct shallow punctures, distance between punctures 0.2 – 3.0 times diameter of punctures. Juxtacoxal carina distinct. Submetapleural carina complete. Fore wing with 1 cu-a distad of M becoming Rs by 0.6 of length of 1 cu-a, 3 rs-m absent, distal abscissa of M spectral; ramulus present; length of vein Cu slightly longer than 2 cu-a (Fig. 12 E). Hind wing with cu-a strongly inclivous and interrupted at lower 0.1. Distal abscissa of Cu pigmented. Distal abscissa of 1 Cu spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa with fine uneven punctures. Hind femur stout, 4 times as long as its maximum width (Fig. 12 C). Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.5 times as long as hind basitarsus. Propodeum steeply sloping from near anterior margin to posterior end in lateral view, sparsely and coarsely punctate (Fig. 12 B). Propodeal carinae partly present, forming trapezoidal combined area superomedia and area petiolaris (Fig. 12 B). METASOMA. T 1 1.8 times as long as apically broad, smooth, petiole flat; postpetiole broad, without median dorsal carina or dorsolateral carina; ventrolateral carina weak; spiracle small, round, slightly convex (Fig. 11 C). T 2 coarsely and sparsely punctate, with distinct gastrocoelus (Fig. 12 A). T 3 coarsely and sparsely punctate (Fig. 12 A). Ovipositor thin, 1.4 times as long as hind basitarsus (Fig. 12 C). COLOUR. Body mostly black. Scape, pedicel, first and second flagellomeres ventrally, T 1 (except postpetiole black), anterior half of T 2, fore margin of T 3 and dorsal part of hind femur pale yellow, and tegula and legs (except hind trochanter, ventral part of hind femur and apical part of hind tibia black) white. Wings infuscate in middle. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	discussion	Remarks Palpostilpnus mangrovi sp. nov. is similar to P. striator Aubert, 1961 and P. papuator (Aubert, 1961) but can be distinguished from them by the following combination of characters: scutellum without wrinkles (Fig. 11 D); body coarsely punctate (Fig. 11 A); hind coxa, T 1 and T 2 partly yellowish (Fig. 11 A); hind tarsus white (Fig. 11 A); antenna with scape pale yellow, flagellomeres 1 – 3 varying from yellow to brown (Fig. 11 A). Palpostilpnus striator and P. papuator have strong wrinkles on the scutellum; the body is rather polished and impunctate; hind coxa, tarsus and metasoma are black; middle flagellomeres of the antenna are coloured white dorsally.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3D4C5EFD8DFEFD9E7FC91B.taxon	distribution	Distribution Singapore.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	description	Figs 13 – 14	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	diagnosis	Diagnosis Body oblique elongate (Fig. 13 A). Postero-ocellar distance 2.0 times as long as ocular-ocellar distance (Fig. 14 F). Occipital carina dorsally broadly absent. Epomia long and strong. Epicnemial carina reaching to upper 0.8 of mesopleuron. Propodeum with median longitudinal carina complete and pleural carina absent (Fig. 14 B). T 1 stout, 1.5 times as long as apically broad. Fore wing hyaline (Fig. 14 G).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	etymology	Etymology The specific name is derived from the resemblance in lateral view of T 1 and its carinae to the outlines of the head of a Pterodactylus sp. (with teeth!), an extinct genus of flying reptile pterosaurs.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	materials_examined	Material examined Holotype CHINA • ♀; Hong Kong, Pak Sha O; 22 ° 26.88 ′ N, 114 ° 19.19 ′ E; 70 m a. s. l.; garden / orchard clearing; Malaise trap M 263; 24 Sep. – 8 Oct. 2016; Christophe Barthélémy leg.; NHRS HT-HEVA 000010859. Paratype CHINA • ♀; Hong Kong, Tai Tan; 22.43857 ° N, 114.33327 ° E; among Kandelia sp.; Malaise trap 28 M 1; 5 – 19 Dec. 2017; C. Taylor and U. Chang leg.; HKU.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	description	Description Female SIZE. Fore wing length 2.8 mm. Body oblique elongate, 1.42 times as long as high (Fig. 13 A). HEAD. Face as broad as high, slightly convex centrally, with fine granulose texture (approximately transversely wrinkled) and densely punctate (Fig. 13 B). Clypeal suture indistinct. Clypeus with weak transverse striation, apical margin straight. Mandible with basal half smooth, scattered with sparse fine punctures, apical tooth sharp. Malar space with granulose texture, 1.4 times as long as mandibular basal width. Gena polished, with fine punctures. Vertex with posterior portion from posterior ocelli to occiput nearly vertically slanted (Fig. 14 F). Frons transversely wrinkled, punctate in between. Postero-ocellar distance 2.0 times ocular-ocellar distance. Antenna with 25 flagellomeres, distinctly thickened from 8 th to 20 th flagellomeres and ventrally flattened (Fig. 14 E). Occipital carina dorsally broadly absent, laterally present. MESOSOMA. Pronotum smooth on lower half, finely punctate on upper half, posterior corner weakly rugose. Epomia long and strong. Mesoscutum short, 0.85 times as long as broad, with granulose texture and large shallow punctures, punctures close and tend to be rugose. Mesoscutum weakly convex anteriorly in lateral view. Notaulus absent. Scutellum flat, shiny and sparely punctate. Mesopleuron centrally smooth and polished, dorsally with 3 irregular rows of punctures; sternaulus shallow, finely punctate. Epicnemial carina reaching to upper 0.8 of mesopleuron. Sternaulus shallow, finely punctate. Mesopleural suture distinctly foveolate. Metapleuron irregularly punctate, juxtacoxal carina weak. Submetapleural carina complete. Postpectal carina interrupted in front of hind coxa. Fore wing with 1 cu-a slightly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.25. Distal abscissa of Cu pigmented in its proximal 0.4. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind femur 2.4 times as long as its maximum width; hind tibia with longer spur 0.6 times as long as hind tibia. Propodeum gradually sloping in lateral view, sparsely punctate, smooth posterocentrally, shiny. Median longitudinal carina complete, third lateral area complete, pleural carina absent (Fig. 14 B). METASOMA. T 1 1.5 times as long as apically broad, slightly wrinkled, postpetiole punctate, dorsolateral carina complete and strong, reaching to spiracle, ventrolateral carina complete and strong (Fig. 13 D). T 2 to T 4 strongly punctate (Fig. 14 A), broader than long (Fig. 14 A). Ovipositor very thin, 0.65 times as long as hind basitarsus (Fig. 14 D). COLOUR. Head black. Antenna with scape whitish, pedicel and first to seventh flagellomeres yellowish brown, with eighth to apical flagellomere dorsally black brown and ventrally yellowish brown. Mandible whitish, with apical tooth black. Palpi whitish yellow. Mesosoma yellowish brown, apex of scutellum and metanotum black. Legs light brown, fore coxa and trochanter yellowish white, hind tibia with base and apex fuscous, hind tarsus whitish yellow. T 1 brown with proximal base black; T 2 – T 6 yellowish brown, centrally with a transverse black band. Ovipositor sheath light brown with apical tip fuscous. Wings hyaline, veins and stigma fuscous. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	discussion	Remarks This species is similar to P. rotundatus Sheng & Sun, 2013, but can be distinguished from the latter by the following combination of characters: occipital carina broadly absent dorsally; T 1 short and stout (1.5 times as long as apically broad vs 1.8 times as long as apically broad in P. rotundatus). This species can easily be separated from other congeneric species by is occipital carina being dorsally broadly absent.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B3E4C50FD96FBBE9EECCAF8.taxon	distribution	Distribution China (Hong Kong).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	description	Figs 15 – 16	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	diagnosis	Diagnosis Body obliquely elongate (Fig. 15 A). Postero-ocellar distance 2.8 times ocular-ocellar distance. Occipital carina complete. Epomia distinct. Epicnemial carina vestigial, only distinguishable on part of mesosternum. Propodeal carinae absent except for posterior portion of median longitudinal carina (Fig. 16 A). T 1 2.2 times as long as apically broad (Fig. 15 D). Wings hyaline (Fig. 16 D).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	etymology	Etymology The specific name is derived from the type locality, Ranu River, on the island of Sulawesi, Indonesia.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	materials_examined	Material examined Holotype INDONESIA • ♀; Sulawesi, Tengah, near Morowali, Ranu River area; 27 Jan. – 27 Apr. 1980; NHMUK. Paratype INDONESIA • ♂; Sulawesi, Tengah, near Morowali, Ranu Lakes; 7 – 10 Mar. 1980; NHMUK.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	description	Description Female SIZE. Fore wing length 3.2 mm. Body obliquely elongate, 1.80 times as long as high (Fig. 15 A). HEAD. Face 1.6 times as broad as high, centrally with faint convexity, with fine granulose texture and dense punctures, distance between punctures 0.2 – 0.3 times diameter of punctures. Clypeal suture weak but distinct. Clypeus distinctly convex, shiny, with distinct transverse striation, apical margin sharp, slightly convex. Basal portion of mandible smooth; teeth sharp, dorsal tooth pointed, slightly longer than ventral tooth. Malar space smoother than face, slightly striate, 1.1 times as long as basal width of mandible. Gena glossy, sparsely punctate, near dorsal corner of eye with slight swelling, but not forming distinct carina. Vertex (Fig. 16 B) punctate, posterior portion from behind ocelli to occipital carina steeply slanted. Postero-ocellar distance 2.8 times ocular-ocellar distance. Frons densely punctate, lower portion slightly concave. Antenna as long as body, with 25 flagellomeres, median portion moderately thickened. Occipital carina complete, tapered upwards. MESOSOMA. Pronotum ventrally smooth, dorsally distinctly punctate. Epomia distinct along posterior margin of collar, indistinct from other striations when diverging from pronotal collar. Mesoscutum (Fig. 15 E) ovoid, 0.95 times as long as broad, comparatively convex, with fine leathery texture and dense punctures. Notaulus indistinct. Scutellum evenly convex, with shallow punctures. Postscutellum with few lateral punctures. Mesopleuron (Fig. 15 C) centrally mostly smooth and shiny, externally to this central area distinctly punctate. Epicnemial carina vestigial, only distinguishable on part of mesosternum. Sternaulus distinct, diagonally crossing mesopleuron from middle anterior part to hind lower margin of mesopleuron. Metapleuron very long and narrow, with distinct shallow punctures, distance between punctures 0.2 – 0.3 times diameter of punctures. Juxtacoxal carina vestigial. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu distinctly longer than 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.2. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa finely punctured on anterior face, posteriorly smooth. Propodeum (Fig. 16 A) with shallow, moderately dense punctures, moderately sloping from near anterior margin to posterior end; propodeal carinae absent except for vestiges of median longitudinal carina; spiracle small, circular. METASOMA. T 1 2.4 times as long as apically broad (Fig. 15 D); petiole dorsally flat, with large shallow punctures, laterally finely punctate; petiole smooth and flat; postpetiole narrow; dorsolateral carina distinct until spiracle but apically weak; ventrolateral carina complete; spiracle small, round, not prominent. T 2 – T 5 punctate-areolate; T 2 broad posteriorly, 0.80 times as long as apically broad. T 3 0.70 times as long as apically broad, parallel-sided. Ovipositor 0.23 times as long as hind tibia. COLOUR. Mostly yellowish and black. Head black; basal 0.8 of mandible, scape and pedicel pale yellow; mandible apex and basal flagellomere ferruginous, flagellum gradually changing to dark brown by fourth flagellomere. Mesosoma mostly pale yellow; median portion of pronotum, posterior 0.6 of mesoscutum, axillary trough, apex of scutellum, postscutellum, mesopleuron except for anterodorsal spot, mesosternum and longitudinal dash on propodeum black. Fore and mid legs pale yellow, gradually darker towards apex. Hind coxa pale yellow; trochanter and femur ferruginous; hind tibia basally pale yellow, gradually changing to ferruginous towards apex; hind tarsus pale yellow. Wings hyaline. Pterostigma and veins yellowish brown. Metasoma mostly pale yellow or light ferruginous; postpetiole of T 1 with dark ferruginous and black areas; T 2 – T 5 with distinct sub-apical transverse stripes, black on T 2 and gradually lighter until ferruginous on T 5. Ovipositor sheath basally pale yellow, apically brown. Male Forewing 3.3 mm long. Antenna with 23 flagellomeres. Otherwise very similar to female except for slightly more slender body and secondary sexual dimorphism.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	discussion	Remarks This species is most similar to P. hainanensis sp. nov., particularly because of the obliquely elongated body and colour pattern. Palpostilpnus ranui sp. nov. can be differentiated from the latter by several relatively small differences, including more extensive black marks on the mesoscutum, mesopleuron and metasoma (Fig. 15 A, C, E); tibia not apically black (vs apical 0.25 black in P. hainanensis sp. nov.); propodeum with traces of the median dorsal carina (vs entirely absent); extensive areas on anterior and posterior margins of mesopleuron densely punctate (vs mesopleuron almost entirely smooth); and epicnemial carina absent from mesopleuron (vs present on lower portion of mesopleuron).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B324C57FDA6FEFC9EFFC87C.taxon	distribution	Distribution Indonesia (Sulawesi).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B374C56FDDFFA5E9E39CE01.taxon	diagnosis	Diagnosis Body obliquely elongate. Postero-ocellar distance 1.25 times ocular-ocellar distance. Occipital carina complete. Epomia present. Epicnemial carina distinct. Propodeal carinae absent except for forming combined area and pleural carina. T 1 1.8 times as long as apically broad. Wings hyaline.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B374C56FDDFFA5E9E39CE01.taxon	materials_examined	Material examined CHINA • ♀; Jiangxi Province, Quannan County; 700 m a. s. l.; 10 Jun. 2008; SIT leg.; photographs examined; GSFPM.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B374C56FDDFFA5E9E39CE01.taxon	description	Description COLOUR. Head black. Labrum, mandible (except for black apical tooth) and palpi pale yellow. Antenna with scape and pedicle pale yellow, flagellum basally and ventrally reddish brown, dorsally from middle length to apex fuscous. Mesosoma reddish brown. Propleuron laterally fuscous; anterior margin of pronotum, anterior upper corner of mesopleuron, and anterior margin of mesoscutum and scutellum (except for black apex) yellowish brown; mesoscutum with black marks on posterior half of median lobe and lateral lobe. Metanotum, epicnemium and anterior margin of submetapleural ridge black. Propodeum basally centrally with a black mark. T 1 black, T 2 – T 6 fuscous, basally and laterally yellowish brown, and apical margins yellow. Legs yellowish brown to reddish brown, hind tibia with base and apex fuscous, hind fifth tarsomere darkened.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B374C56FDDFFA5E9E39CE01.taxon	discussion	Remarks This species is similar to P. angkor sp. nov. but differs from the latter by having the mesoscutum densely reticulate-punctate (vs with large shallow punctures in P. angkor sp. nov.) and the posteroocellar distance 1.25 times the ocular-ocellar distance (vs 3.4 times in P. angkor sp. nov.).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B374C56FDDFFA5E9E39CE01.taxon	distribution	Distribution China (Jiangxi).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	description	Figs 17 – 19	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	diagnosis	Diagnosis Body obliquely elongate (Fig. 17 A). Postero-ocellar distance 0.7 times ocular-ocellar distance. Occipital carina complete. Epomia indistinct. Epicnemial carina reaching middle of mesopleuron. Propodeal carinae absent (Fig. 18 A). T 1 1.9 times as long as apically broad. Wings hyaline (Fig. 18 D).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	etymology	Etymology The specific name is derived from the type locality, Tamasek, an early recorded name of a settlement on the site of modern Singapore.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	materials_examined	Material examined Holotype SINGAPORE • ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 04.2 ″ N, 103 ° 48 ′ 40.7 ″ E; Malaise trap (NS 2); 18 – 24 Jul. 2013; NUS leg.; barcode: ZRC _ BDP 0039960; LKCNHM. Paratypes BRUNEI • 2 ♂♂; Ulu Temburong base camp hut; 4 ° 26 ′ N, 115 ° 16 ′ E; 300 m a. s. l.; 16 Feb. – 19 Mar. 1982; M. C. Day leg.; NHMUK. INDONESIA • 1 ♀; Seram, Solea village; Aug. 1987; M. C. Day leg.; Malaise trap; NHMUK BMNH (E) 1987 - 262 • 1 ♀; W Java, Gurung Haliman National Park; 21 Jan. – 15 Feb. 2000; G. Broad leg.; canopy; NHMUK BMNH (E) 2006 - 170. MALAYSIA • 1 ♀; Sarawak; May – Jun. 1978; N. M. Collins leg.; 4 th Division Garrison Milu, RGS Expedition; NHMUK. SINGAPORE • 1 ♀; same collection data as for holotype; 23 – 30 May 2012; barcode: ZRC _ BDP 0029921; LKCNHM • 1 ♂; same collection data as for holotype; 17 – 23 May 2013; barcode: ZRC _ BDP 0030019; LKCNHM • 1 ♀; same collection data as for holotype; 22 – 29 May 2012; barcode: ZRC _ BDP 0029970; LKCNHM • 1 ♂; same collection data as for holotype; 16 – 23 Oct. 2013; barcode: ZRC _ BDP 0040003; LKCNHM • 1 ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 00.3 ″ N, 103 ° 48 ′ 46.5 ″ E; Malaise trap (NS 1); 28 Mar. – 3 Apr. 2013; NUS leg.; barcode: ZRC _ BDP 0039388; NHRS PT-HEVA 000010860 • 1 ♂; same collection data as for preceding; 21 – 28 Aug. 2013; barcode: ZRC _ BDP 0039306; NHRS PT-HEVA 000010863 • 1 ♂; same collection data as for preceding; 13 – 20 Jun. 2012; barcode: ZRC _ BDP 0029963; LKCNHM • 1 ♂; same collection data as for preceding; 19 – 26 Jun. 2013; barcode: ZRC _ BDP 0030034; LKCNHM • 1 ♂; same collection data as for preceding; 24 – 31 Jul. 2013; barcode: ZRC _ BDP 0039510; LKCNHM • 1 ♂; same collection data as for preceding; 19 – 26 Jun. 2013; barcode: ZRC _ BDP 0030032; LKCNHM • 1 ♀; Bukit Timah; old secondary forest; Malaise trap; 1.35499 ° N, 103.78167 ° E; 12 – 19 Jul. 2017; NUS leg.; barcode: ZRC _ BDP 0019810; LKCNHM • 1 ♀; Bukit Timah; old secondary forest; Malaise trap; 1.35467 ° N, 103.78201 ° E; 12 – 19 Jul. 2017; NUS leg.; barcode: ZRC _ BDP 0018399; LKCNHM • 1 ♀; same collection data as for preceding; 29 Mar. – 5 Apr. 2017; barcode: ZRC _ BDP 0019719; LKCNHM • 1 ♂; Nee Soon Swamp Forest; 1 ° 23 ′ 07.83 ″ N, 103 ° 48 ′ 39.48 ″ E; Malaise trap 3; 24 Feb. – 3 Mar. 2006; K. L. Yeo leg.; RBINS • 1 ♀; same collection data as for preceding; 4 – 11 Mar. 2006; RBINS • 2 ♂♂; same collection data as for preceding; 15 – 22 Mar. 2006; RBINS.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	description	Description Female SIZE. Fore wing length 3 mm. Body oblique elongate, 1.72 times as long as high (Fig. 17 A). HEAD. Face 1.6 times as broad as high, centrally slightly convex, with coarse dense punctures, distance between punctures about 0.3 times diameter of punctures (Fig. 17 B). Clypeal suture very weak. Clypeus slightly convex, shiny, distinctly striated, apically straight (not evenly convex downwards) with sharp apical margin. Basal portion of mandible smooth; teeth sharp, upper teeth slightly broader than lower. Malar space smooth, 0.3 times as long as basal width of mandible. Gena glossy, smooth and shiny, forming weak swelling but no carina in dorsal part between vertex and eye margin. Vertex strongly punctate, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 2.40 times distance between lateral ocellus and eye margin. Frons densely punctate, lower portion slightly concave. Antenna as long as body, with 25 flagellomeres, median portion very thickened. Occipital carina complete, tapered upwards. MESOSOMA. Pronotum smooth, with dense punctures on dorsal margin. Epomia indistinct. Mesoscutum (Fig. 17 E) elongate, anteriorly protruding above pronotum, comparatively flat, with granulated texture and shallow punctures. Notaulus indistinct. Scutellum flat, elongate, with fine sparse punctures. Postscutellum slightly elongate, distinctly punctate. Mesopleuron (Fig. 17 C) centrally and posteriorly smooth, shiny, anteroventral portion with distinct punctures. Epicnemial carina reaching middle of mesopleuron. Sternaulus distinct only on anterior 0.5 of mesopleuron. Metapleuron long and narrow, with distinct fine punctures, distance between punctures about 2.0 times diameter of punctures. Juxtacoxal carina absent. Submetapleural carina complete. Wings hyaline. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus present; length of vein Cu equal to 2 cu-a (Fig. 18 D). Hind wing with cu-a strongly inclivous and interrupted at lower 0.4. Distal abscissa of Cu pigmented. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa with fine and indistinct punctures. Propodeum (Fig. 18 B) with sparse shallow punctures, gently sloping from near anterior margin to posterior end; propodeal carinae absent. METASOMA. T 1 1.9 times as long as apically broad, smooth, petiole flat; postpetiole narrow, convex, with hind margin notched; with sparse distinct punctures in lateral part, without median dorsal carina or dorsolateral carina; ventrolateral carina weak; spiracle small, round (Figs 17 D, 18 A). T 2 – T 6 coarsely and sparsely punctate; T 2 broad posteriorly, almost broad apically. T 3 0.7 times as long as apically broad, parallel-sided (Fig. 18 A). Ovipositor very thin, 1.5 times as long as hind basitarsus (Fig. 18 C). COLOUR. Body mostly ferruginous (but variable, see below). Flagellomeres starting from 2 dorsally, head (excluding basal parts of mandibles), pronotum, mesoscutum (except yellow anterior lateral edges), central part of scutellum, anterior part of mesopleuron, apical part of hind tibia, hind part of T 1 and central part of T 2 – T 5 black. Anterior lateral edge of mesoscutum, anterior upper angle of mesopleuron, and fore and middle trochanters pale yellow. Palpi white. Pterostigma and veins yellowish brown. Wings hyaline. Male (Fig. 19) Mostly as in the female but T 1 shorter, 1.7 times as long as apically broad, antennal flagellomeres paler ventrally, and most of mesopleuron, most of metasoma and basal part of propodeum dorsally black. Variation Fore wing 3 – 3.5 mm long. Antenna with 23 – 25 flagellomeres. Specimens from Brunei and Indonesia with juxtacoxal carina vestigial, and with more extensive parts of the mesosoma black: 0.6 – 0.9 of mesopleuron area (anterodorsal portion), central stripe in scutellum and 0.4 – 0.6 of propodeum (anterior portion plus longitudinal stripe); T 2 – T 5 also mostly black.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	discussion	Remarks This species is similar to P. trifolium sp. nov., but can be distinguished from the latter by having a distinctly more elongated body (1.72 times as long as high, vs 1.48 times as long as high in P. trifolium sp. nov.) and the following combination of characters: gena forming a blunt swelling in its upper part at vertex and eye margin; mesoscutum anteriorly protruding above pronotum; scutellum yellow laterally; vein 2 - Cu slightly shorter than 2 cu-a; ovipositor longer, 3.5 times as long as hind basitarsus (Fig. 18 C).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B364C6DFDB5FCB19E7FCE1F.taxon	distribution	Distribution Singapore.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	description	Figs 20 – 21	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	diagnosis	Diagnosis Body obliquely elongate (Fig. 20 A). Postero-ocellar distance 1.5 times ocular-ocellar distance (Fig. 21 G). Occipital carina complete. Epomia distinct. Epicnemial carina short, defined only in ventral portion of mesopleuron. Propodeal carinae incomplete, except area postero-externa (Fig. 21 C). T 1 1.8 times as long as apically broad. Wings hyaline (Fig. 21 H).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	etymology	Etymology The specific name is derived from the generic Latin name of clover, Trifolium L., in reference to the trilobed colour pattern on the scutum of this species.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	materials_examined	Material examined Holotype CHINA • ♀; Hong Kong, Pak Sha O; 22 ° 26.88 ′ N, 114 ° 19.19 ′ E; 70 m a. s. l.; garden / orchard clearing; Malaise trap M 018. C. Hy. 10; 7 – 13 Jun. 2004; C. Barthélémy leg.; NHRS HT-HEVA 000010861.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	description	Description Female SIZE. Fore wing length 4.2 mm. Body oblique elongate, 1.48 times as long as high (Fig. 20 A). HEAD. Face 2.0 times as broad as high, longitudinally slightly convex centrally, forming rectangular area, sublateral portion longitudinally slightly concave (Fig. 20 B). Clypeal suture indistinct. Clypeus flat, matte, striated, apically flat, with sharp apical margin. Basal portion of mandible smooth; teeth sharp, of equal length. Malar space smooth, equal to basal width of mandible. Gena glossy, smooth and shiny. Vertex (Fig. 21 G) smooth, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 1.5 times ocular-ocellar distance (Fig. 21 G). Frons with fine leathery texture, lower portion slightly concave (Fig. 21 G). Antenna slightly shorter than body, with 24 flagellomeres, median portion very thickened (Fig. 21 F). Occipital carina complete, tapered upwards. MESOSOMA. Pronotum smooth, sparsely and shallowly punctate. Epomia distinct. Mesoscutum ovoid, 0.97 times as long as broad, convex, with granulated texture and distinct punctures (Fig. 20 E). Notaulus indistinct (Fig. 20 E). Scutellum evenly convex, almost smooth, with distinct sparse punctures. Postscutellum transverse, smooth. Mesopleuron (Fig. 20 C) smooth, shiny, anterior portion with shallow punctures; lower portion with punctures indistinct; posterior portion smooth. Epicnemial carina short, defined only in ventral portion of mesopleuron. Sternaulus indistinct, defined in middle anterior part of mesopleuron. Metapleuron very long and narrow, with distinct shallow punctures, distance between punctures 0.75 – 1.2 times diameter of punctures. Juxtacoxal carina absent. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a (Fig. 21 H). Hind wing with cu-a strongly inclivous and interrupted at lower 0.16. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa with fine and indistinct punctures. Basal portion of hind tibia slender, gradually thick toward apex. Propodeum gradually sloping in lateral view, with sparse fine punctures. Propodeal carinae absent except apical part of medial longitudinal carina and lateral part of posterior transverse carina closing area postero-externa (Fig. 21 C). METASOMA. T 1 1.8 times as long as apically broad, smooth, petiole flat; postpetiole broad, convex, with sparse distinct punctures, without median dorsal carina or dorsolateral carina; ventrolateral carina weak; spiracle small, round (Figs 20 D, 21 A – B). T 2 coarsely and sparsely punctate, broad posteriorly, 1.4 times as long as apically broad. T 2 0.6 times as long as apically broad, parallel-sided, also coarsely and sparsely punctate. T 3 – T 5 distinctly punctate, with same punctuation (Fig. 21 B). Ovipositor very thin, 0.9 times as long as hind basitarsus (Fig. 21 E). COLOUR. Body mostly reddish yellow. Flagellomeres starting from 3 dorsally, head (excluding basal parts of mandibles), pronotum, mesoscutum (except yellow anterior lateral edges), scutellum and central part of T 2 – T 5 black. Palpi white. Pterostigma and veins yellowish brown. Wings hyaline. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	discussion	Remarks This species is similar to P. tamasek sp. nov., but can be distinguished from the latter by the following combination of characters: body short (Fig. 20 A); mesoscutum not protruding above pronotum; scutellum entirely black; lengths of veins 2 - Cu and 2 cu-a equal; ovipositor short, 0.9 times as long as hind basitarsus (Fig. 21 E).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0D4C6EFD89FCB59E87CB3F.taxon	distribution	Distribution China (Hong Kong). The palpator group	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	description	Fig. 22	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	diagnosis	Diagnosis Body short and stout, mostly pale yellow and black (Fig. 22 A); T 2 – T 5 with distinct sub-apical transverse black stripes; antenna distinctly shorter than body, medially strongly flattened; postero-ocellar distance 3.4 times ocular-ocellar distance; mesoscutum moderately long, 0.9 times as long as broad (Fig. 22 E), distinctly convex, anteriorly slightly projecting over pronotum; propodeal carinae absent except for vestiges of posterior transverse carina and posterior portion of median longitudinal carina; wings hyaline (Fig. 22 A); T 1 1.7 times as long as apically broad (Fig. 22 D). Ovipositor 0.27 times as long as hind basitarsus.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	etymology	Etymology The specific name is derived from the type locality, Angkor Wat.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	materials_examined	Material examined Holotype CAMBODIA • ♀; Siem Reap Province, Angkor, Praeh Khan Temple; Malaise trap; 24 Jan. – 21 Feb. 2006; Oul Yothin leg.; RBINS. Paratype BRUNEI • 3 ♀♀; Labi; 200 m a. s. l.; mixed dipterocarp forest; Aug – Sep. 1979; I. Gauld leg.; NHMUK.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	description	Description Female SIZE. Fore wing length 3.3 mm. Body short and stout, 1.50 times as long as high. HEAD. Face 1.4 times as broad as high, centrally slightly convex, alutaceous (Fig. 22 B). Clypeal suture indistinct, but clypeus distinctly delimited by change of sculpturing. Clypeus slightly convex, shiny, distinctly striated, with sharp, truncate apical margin. Basal portion of mandible smooth; dorsal tooth lanceolate, broader than ventral tooth. Malar space alutaceous, 1.3 times as long as basal mandible width. Gena glossy, mostly smooth with sparse shallow punctures, dorsally forming weak carina posterior to dorsal corner of eye and with angled, carina-like elevation between lateral ocellus and occipital carina. Vertex (Fig. 22 E) sparsely punctate, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 3.4 times ocular-ocellar distance. Frons coriarious-punctate, lower portion not distinctly concave. Antenna distinctly shorter than body, with 25 flagellomeres, median portion strongly thickened. Occipital carina complete. MESOSOMA. Pronotum punctate-areolate (Fig. 22 C). Epomia indistinct. Mesoscutum (Fig. 22 E) moderately long, as long as broad, distinctly convex, anteriorly slightly projecting over pronotum, with granulated texture and large shallow punctures. Notaulus indistinct. Scutellum flat, elongate, with fine sparse punctures. Postscutellum punctate. Mesopleuron (Fig. 22 C) centrally smooth, shiny, distinctly punctate on its margins. Epicnemial carina reaching dorsal 0.6 of mesopleuron. Sternaulus distinct on anterior 0.8 of mesopleuron. Metapleuron long and narrow, shallowly punctate-areolate. Juxtacoxal carina short but distinct. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.18. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa anteriorly shallowly punctate, posteriorly smooth. Propodeum steeply sloping in lateral view (Fig. 22 C), mostly covered by dense shallow punctures, posterocentrally smoother. Propodeal carinae absent (Fig. 22 D). METASOMA. T 1 1.7 times as long as apically broad, petiole dorsally flat and smooth, laterally punctate; postpetiole slightly convex, moderately broad; with sparse, distinct punctures, dorsolateral carina complete and strong until spiracle; ventrolateral carina complete but anteriorly weak; spiracle small, round, not prominent. T 2 – T 5 coarsely and sparsely punctate; T 2 widened posteriorly, almost apically wide. Ovipositor 1.7 times as long as hind basitarsus. COLOUR. Mostly yellowish and black. Head black; basal 0.8 of mandible, scape and ventral face of pedicel pale yellow; mandible apex, dorsal face of pedicel and basal flagellomeres ferruginous, flagellum gradually changing to dark brown by fifth flagellomere. Pronotum, propleuron, posterior 0.7 of mesoscutum, axillary trough, most of mesopleuron, mesosternum and about 0.9 of propodeum black. Anterior arc on mesoscutum, scutellum, ovoid spot on anterior corner of mesopleuron, metapleuron and two small sublateral spots on posterior end of propodeum pale yellow. Fore and mid legs pale yellow, gradually darker towards apex. Hind coxa extensively black on mesal face; trochanter black; trochantellus and femur ferruginous, with small black marks; hind tibia basally pale yellow, gradually changing to ferruginous and black towards apex; hind tarsus pale yellow except for black T 5. Wings hyaline. Pterostigma and veins yellowish brown. Metasoma mostly pale yellow or light ferruginous; T 1 dorsally with transverse black stripe opposite spiracle, area immediately adjacent to stripe ferruginous; T 2 – T 5 with distinct sub-apical transverse black stripes; T 6 and T 7 laterally ferruginous, T 8 almost entirely ferruginous. Ovipositor sheath basally pale yellow, apically brown. Male Unknown. Variation Fore wing 3.1 – 3.5 mm long. Antenna with 23 – 25 flagellomeres. Dorsoposterior corner of pronotum sometimes with small yellowish mark; anterior pale yellow arc on mesoscutum sometimes medially interrupted; pale yellow mark on mesopleuron sometimes restricted to subalar ridge; punctures on mesopleuron restricted to its margin to variously invading the central, otherwise smooth, area; black areas in propodeum covering 0.2 – 0.9 of its area; black marks on hind coxa and trochanter sometimes reduced; black stripe on T 2 sometimes incomplete; marks on T 3 and T 4 variable in size, sometimes distinct as clear circular spots, sometimes almost indistinct.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	discussion	Remarks Very similar to P. maculatus Sheng & Sun, 2013, from which it can be differentiated mainly by the following characters: mesoscutum longer (as long as broad) and distinctly convex, anterior margin projecting over pronotum (vs 0.75 times as long as broad in P. maculatus, and flat, not projecting over pronotum); T 1 – T 5 all with distinct black stripes (vs distinct stripes only at T 1 and T 2, while T 3 and T 4 with small sublateral marks); antenna shorter and stouter; postero-ocellar distance distinctly much longer (3.4 times vs 2.3 times ocular-ocellar distance).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B0E4C63FDBCF9A29EDFC806.taxon	distribution	Distribution Brunei, Cambodia.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B034C63FDC9FAA39E39CAF7.taxon	diagnosis	Diagnosis Clypeal suture very weak and indistinct. Postero-ocellar distance equal to distance between lateral ocellus and eye margin. Notaulus distinct. Hind wing with cu-a interrupted at lower 0.2. Lateral carinae of area basalis combined into one carina. Ovipositor very short, 0.4 times as long as length of hind basitarsus. T 2 and T 3 yellowish brown to reddish brown. Wings hyaline. Antennal flagellum with middle flagellomeres coloured white dorsally.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B034C63FDC9FAA39E39CAF7.taxon	discussion	Remarks This species is similar to P. palpator (Aubert, 1961), but differs from it by the following combination of characters: notaulus distinct, T 2 – T 4 reddish (black in P. palpator), middle antennal flagellomeres coloured white, frons with fine leathery texture and unevenly punctate, ovipositor 0.4 times as long as length of hind basitarsus (2.1 times in P. palpator), fore and mid coxae white, and hind tibia dark brown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B034C63FDC9FAA39E39CAF7.taxon	distribution	Distribution China (Jiangxi).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B024C65FDDAFEFC9D90CB4B.taxon	diagnosis	Diagnosis Body short and stout. Postero-ocellar distance 2.3 times ocular-ocellar distance. Epomia distinct. Epicnemial carina distinct, reaching upper 0.8 of mesopleuron. Propodeal carinae absent except for vestiges of posterior transverse carina and posterior portion of median longitudinal carina. T 1 1.7 times as long as apically broad. Wings hyaline.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B024C65FDDAFEFC9D90CB4B.taxon	materials_examined	Material examined Holotype CHINA • ♀; Jiangxi, Guangshan National Natural Reserve; 400 – 500 m a. s. l.; 15 Jun. 2009; SIT leg.; photographs examined; GSFPM. Other material BRUNEI • 2 ♀♀; Labi; 200 m a. s. l.; mixed dipterocarp forest; Aug. – Sep. 1979; I. Gauld leg.; NHMUK. MALAYSIA • 2 ♀♀; Sarawak, 4 th division, Gunung Mulu National Park; May – Jun. 1978; N. M. Collins, RGS Expedition leg.; NHMUK • 2 ♀♀, 2 ♂♂; same collection data as for preceding; Jun. – Jul. 1978; NHMUK.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B024C65FDDAFEFC9D90CB4B.taxon	description	Redescription Female SIZE. Fore wing length 3.3 mm. Body short and stout, 1.45 times as long as high. HEAD. Face 1.8 times as broad as high, centrally slightly convex, coriaceous-punctate (punctures best observed in oblique view). Clypeal suture absent. Clypeus slightly convex, shiny, distinctly striated, with sharp, slightly convex apical margin. Basal portion of mandible smooth; dorsal tooth lanceolate, broader than ventral tooth. Malar space coriarious, 1.4 times as long as basal width of mandible. Gena glossy, mostly smooth with sparse shallow punctures, dorsally forming two weak carinae, posterior to dorsal corner of eye and lateral ocellus. Vertex sparsely punctate, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 2.3 times ocularocellar distance. Frons coriaceous-punctate, lower portion not distinctly concave. Antenna slightly shorter than body, with 27 flagellomeres, first flagellomere 1.1 times as long as second flagellomere, median portion of antenna moderately thickened. Occipital carina complete. MESOSOMA. Pronotum punctate-areolate. Epomia distinct. Mesoscutum short, 0.75 times as long as broad, almost flat, with granulated texture and large, shallow punctures. Notaulus indistinct. Scutellum flat, elongate, with fine sparse punctures. Postscutellum smooth. Mesopleuron centrally smooth, shiny, distinctly punctate on speculum, ventrad of sternaulus and anteriorly to epicnemial carina. Epicnemial carina reaching dorsal 0.8 of mesopleuron. Sternaulus distinct on anterior 0.6 of mesopleuron. Metapleuron long and narrow, shallowly punctate-areolate. Juxtacoxal carina short but distinct. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus present; vein Cu slightly longer than 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.3. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of basal portion of fore basitarsus distinctly bent. Hind coxa anteriorly shallowly punctate, posteriorly smooth. Propodeum mostly covered by dense shallow punctures, posterocentrally smoother, steeply sloping from near anterior margin to posterior end; propodeal carina absent, lateral longitudinal and posterior transverse carinae only represented by vestigial traces on posterior end of propodeum. METASOMA. T 1 1.9 times as long as apically broad, smooth, petiole dorsally flat; postpetiole slightly convex, broad, apex of T 1 3.2 times as long as base; with sparse, distinct punctures, dorsolateral carina complete and strong until spiracle; ventrolateral carina complete but anteriorly weak; spiracle small, round, not prominent. T 2 – T 5 coarsely and sparsely punctate; T 2 broad posteriorly, 0.62 times as long as apically broad. T 3 0.45 times as long as apically broad, parallel-sided. Ovipositor 1.42 times as long as hind basitarsus. COLOUR. Mostly yellowish and black. Head black; basal 0.8 of mandible, scape and ventral face of pedicel pale yellow; mandible apex, dorsal face of pedicel and basal flagellomeres ferruginous, flagellum gradually changing to dark brown by fifth flagellomere. Mesosoma mostly pale yellow; pronotum except collar, propleuron, small spot on anterior margin of mesoscutum, posterior 0.7 of mesoscutum, axillary trough, most of mesopleuron, mesosternum and sublateral spots on propodeum black. Fore and mid legs gradually darker towards apex. Hind coxa with small black marks on mesal face; hind trochanter and femur ferruginous, trochanter with lateral black spots; hind tibia basally pale yellow, gradually changing to ferruginous and black towards apex; hind tarsus pale yellow except for black T 5. Wings hyaline. Pterostigma and veins yellowish brown. Metasoma mostly pale yellow or light ferruginous; T 1 dorsally with transverse black stripe opposite spiracle, area immediately adjacent to stripe ferruginous; T 2 with distinct sub-apical transverse black stripe; T 3 and T 4 with small (almost indistinct on T 4) sublateral black marks. Ovipositor sheath basally pale yellow, apically brown. Male Unknown. Variation Fore wing 3.0 – 3.5 mm long. Antenna with 26 – 27 flagellomeres. Mesopleuron sometimes with yellow spot on posteroventral corner. Black areas in propodeum covering 0.05 – 0.5 of its area (specimens from Brunei with less extensive black marks). Black stripe on T 2 sometimes incomplete; marks on T 3 and T 4 variable in size, sometimes distinct as clear circular spots, sometimes almost indistinct.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B024C65FDDAFEFC9D90CB4B.taxon	discussion	Remarks This species is similar to P. angkor sp. nov., from which it can be differentiated mainly by the following characters: mesoscutum very short, 0.75 times as long as broad, and flat, not projecting over pronotum (vs as long as broad and distinctly convex, anterior margin projecting over pronotum in P. angkor sp. nov.); black stripes on metasoma restricted to T 1 and T 2, with small sublateral marks on T 3 and T 4 (vs distinct stripes only on T 1 – T 5); antenna longer and more slender; postero-ocellar distance distinctly much shorter (2.3 times vs 3.4 times ocular-ocellar distance); and T 1 more distinctly widened apically (apical width 3.2 times vs 2.5 times as wide as basal width).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B024C65FDDAFEFC9D90CB4B.taxon	distribution	Distribution Brunei, China (Jiangxi), Malaysia (Sarawak).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B054C66FDE2F9679EFBCC44.taxon	description	Fig. 23	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B054C66FDE2F9679EFBCC44.taxon	diagnosis	Diagnosis Clypeal suture indistinct. Notaulus indistinct. Fore wing with M absent. Propodeal carinae partly present. Ovipositor 2.1 times as long as hind basitarsus. Body mostly black with scape, pedicel and legs reddishyellow, and palpi white (Fig. 23 A – B). Wings hyaline.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B054C66FDE2F9679EFBCC44.taxon	materials_examined	Material examined Holotype PHILIPPINES • ♀; Negros, Mt Canlaon; 5 – 8 May 1953; J. Aubert and H. Townes leg.; USUC.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B054C66FDE2F9679EFBCC44.taxon	description	Redescription Female (holotype) SIZE. Fore wing length 4.1 mm. Body short and stout, 1.35 times as long as high (Fig. 23). HEAD. Face 1.61 times as broad as high, centrally slightly convex, finely granulose (Fig. 23 D). Clypeal suture indistinct. Clypeus slightly convex, shiny, sparsely punctate, apical margin moderately thick and truncate. Basal portion of mandible with weak and fine punctures; upper and lower margins almost parallel; teeth sharp, upper tooth approximately as long as lower tooth. Malar space with fine leathery granulose texture. Malar sulcus indistinct. Malar space approximately 0.67 times as long as basal width of mandible. Gena glossy, smooth and shiny, with no distinct carina dorsally between vertex and eye. Vertex (Fig. 23 E) smooth, polished; posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 2.45 times ocular-ocellar distance. Frons smooth and polished, lower portion slightly concave. Antenna slightly shorter than body, with 21 flagellomeres, median portion moderately thickened. MESOSOMA. Pronotum mostly sparsely punctate, with longitudinal rugae near posterior margin. Epomia indistinct. Mesoscutum (Fig. 23 F) wide and short, convex, with dense fine punctures. Notaulus distinct, reaching past half length of mesoscutum. Scutellum convex, densely pilose, anteriorly with fine, longitudinal striae (Fig. 23 F). Postscutellum transverse, smooth. Mesopleuron centrally smooth, near margins densely punctate, densely pilose. Epicnemial carina short, extending through ventral 0.4 of mesopleuron (Fig. 23 C). Sternaulus distinct, extending over entire mesopleuron. Juxtacoxal carina vestigial. Submetapleural carina complete. Fore wing with 1 cu-a slightly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a (Fig. 23 A). Hind wing with cu-a strongly inclivous and interrupted at lower 0.2. Distal abscissa of 1 Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa sparsely punctate on anterior face, elsewhere smooth. Hind femur stout, length 4.67 times its maximum width, with distinct ridge-like swelling on basal 0.3 of posterior face. Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.40 times as long as length of hind basitarsus. Propodeum steeply sloping in lateral view, centrally smooth, anterior and lateral portions rugulose. Propodeum entirely carinated. METASOMA (Fig. 23 F). T 1 approximately 2.5 times as long as apically broad; portion just before posterior apex bulging and distinctly broader than posterior margin; petiole flat, laterally smooth, dorsally with fine longitudinal striae extending into postpetiole; median dorsal carina absent; dorsolateral and ventrolateral carinae weak to almost indistinct, fading towards posterior apex; spiracle small, round, not prominent. T 2 and T 3 covered with fine, but distinct longitudinal striae. T 2 long and widened posteriorly, approximately 1.4 times as long as apically broad. T 3 approximately 1.0 times as long as apically broad, parallel-sided. Ovipositor 2.1 times as long as hind basitarsus (Fig. 23 B). COLOUR. Body almost entirely blackish, with legs mostly brownish to orange. Head black; scape and pedicel ferruginous-brown; flagellum brown, flagellomeres 6 – 10 dorsally white. Apex of mandible reddish. Palpi whitish. Mesosoma black. Fore leg ferruginous except trochanter whitish; mid and hind coxae brown, trochanters whitish; remainder of mid leg fuscous, except basal 0.6 of dorsal face of tibia whitish. Hind leg apicad of trochanter dark brown, except basal 0.25 of tibia whitish. Fore wing with distinct median and subapical infuscate bands. T 4 – T 7 brownish, T 5 – T 7 with posterior whitish band, second sternite whitish. Male Unknown.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B054C66FDE2F9679EFBCC44.taxon	discussion	Remarks Palpostilpnus palpator is similar to P. brevis Sheng & Broad, 2011, but can be distinguished from the latter by the following combination of characters: notaulus indistinct, antenna and metasoma black, frons smooth, ovipositor 2.1 times as long as hind basitarsus (vs 0.4 times in P. brevis).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B054C66FDE2F9679EFBCC44.taxon	distribution	Distribution Philippines (Negros).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B064C79FDE6FE579EE4C95A.taxon	description	Fig. 24	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B064C79FDE6FE579EE4C95A.taxon	diagnosis	Diagnosis Clypeal suture indistinct. Fore wing with M present. Propodeal carinae partly present. Ovipositor 2.1 times as long as hind basitarsus. Body mostly black, with middle flagellomeres dorsally, palpi, trochanters, basal part of hind tibia and T 6 white (Fig. 23 B). Wings infuscated, with two transverse bands.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B064C79FDE6FE579EE4C95A.taxon	materials_examined	Material examined Holotype PAPUA NEW GUINEA • ♀; Lanham Dobodura; Dec. 1943; H. Townes leg.; USUC.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B064C79FDE6FE579EE4C95A.taxon	description	Description Female (holotype) SIZE. Fore wing length 3.8 mm. Body short and stout, 1.40 times as long as high (Fig. 24). HEAD. Face 1.13 times as broad as high, centrally slightly convex, finely granulose (Fig. 24 C). Clypeal suture indistinct. Clypeus slightly convex, matte, transversely striate, apically evenly convex downwards, with sharp apical margin. Mandible basally sparsely punctate; teeth blunt, with subequal length. Malar space granulated, 0.8 times as long as basal mandible width. Gena glossy, smooth and shiny, with no distinct carina dorsally between vertex and eye. Vertex smooth to coriarious; posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Frons coriarious-rugose, lower portion slightly concave. Antenna slightly shorter than body, median portion moderately thickened. MESOSOMA. Pronotum rugulose. Epomia indistinct. Mesoscutum wide and short, convex, mostly coriarious, with short transverse striae over notaulus. Notaulus distinct, reaching past half length of mesoscutum. Scutellum convex, with strong, regularly spaced longitudinal striae. Postscutellum transverse, smooth. Mesopleuron irregularly rugose, with sparse, small, smooth areas, sparsely pilose. Epicnemial carina short, extending through ventral 0.5 of mesopleuron (Fig. 24 D). Sternaulus distinct, extending over entire mesopleuron. Juxtacoxal carina distinct. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.3. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa punctate along lateral longitudinal portion, elsewhere smooth. Hind femur stout, length 3.9 times its maximum width, with distinct ridge-like swelling on basal 0.3 of posterior face. Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.35 times as long as length of hind basitarsus. Propodeum steeply sloping in lateral view, centrally smooth, anterior and lateral portions rugulose. Posterior transverse and median longitudinal carinae well developed, complete. METASOMA (Fig. 26 A). T 1 approximately 2.5 times as long as apically broad; portion just before posterior apex bulging and distinctly broader than posterior margin; petiole flat, laterally smooth, dorsally with fine longitudinal striae extending into postpetiole; median dorsal carina absent; dorsolateral and ventrolateral carinae anteriorly distinct, fading towards posterior apex; spiracle small, round, not prominent. T 2 – T 3 covered with fine, but distinct longitudinal striae. T 2 long and widened posteriorly, approximately 1.4 times as long as apically broad. T 3 approximately 1.0 times as long as apically broad, parallel-sided. Ovipositor 2.1 times as long as hind basitarsus. COLOUR. Body almost entirely blackish, with legs mostly brownish to orange. Head black; scape and pedicel ferruginous-brown; flagellum brown, flagellomeres 6 – 10 dorsally white. Apex of mandible reddish. Palpi whitish. Mesosoma black. Fore leg ferruginous except trochanter whitish; mid and hind coxae brown, trochanters whitish; remainder of mid leg fuscous, except basal 0.6 of dorsal face of tibia whitish. Hind leg apicad of trochanter dark brown, except basal 0.25 of tibia whitish. Fore wing with distinct median and subapical infuscate bands. T 4 – T 7 brownish, T 5 – T 7 with posterior whitish band, S 2 whitish.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B064C79FDE6FE579EE4C95A.taxon	discussion	Remarks This species is similar to P. striator Aubert, 1961, from which it can be distinguished by the following combination of characters: frons, mesonotum and mesosternum finely punctate, entirely dull, ovipositor 2.1 times as long as length of hind basitarsus (vs 1.5 times in P. striator).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B064C79FDE6FE579EE4C95A.taxon	distribution	Distribution Papua New Guinea.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B184C7BFE29FEFC9DC6CFFD.taxon	description	Fig. 25	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B184C7BFE29FEFC9DC6CFFD.taxon	diagnosis	Diagnosis Mesosoma mostly reddish (Fig. 25 A – B). Scutellum densely punctate. Basal part of hind tibia white (Fig. 25 A). Apical part of fore wing infuscate.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B184C7BFE29FEFC9DC6CFFD.taxon	materials_examined	Material examined Holotype PHILIPPINES • ♀; Luzon, Mt Macolod; 24 Oct. 1953; H. Townes leg.; USUC.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B184C7BFE29FEFC9DC6CFFD.taxon	description	Description Female (holotype) SIZE. Fore wing length 4.0 mm. Body short and stout, 1.35 times as long as high (Fig. 25). HEAD. Face 1.5 times as broad as high, centrally slightly convex, finely granulose (Fig. 25 C). Clypeal suture indistinct. Clypeus slightly convex, matte, transversely striate, apically evenly convex downwards, with sharp apical margin. Mandible basally sparsely punctate; teeth blunt, of subequal length. Malar space granulated, 1.2 times as long as basal mandible width. Gena glossy, smooth and shiny, with no distinct carina dorsally between vertex and eye. Vertex (Fig. 25 D) smooth to coriarious; posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 5.2 times ocular-ocellar distance (Fig. 25 D). Frons coriarious-rugose, lower portion slightly concave. Antenna slightly longer than body, with 27 flagellomeres, median portion moderately thickened. MESOSOMA. Pronotum rugulose. Epomia indistinct. Mesoscutum wide and short, convex, with coarse and dense punctures. Notaulus distinct, reaching past half-length of mesoscutum. Scutellum convex, with coarse shallow punctures (Fig. 25 D). Postscutellum transverse, smooth. Mesopleuron punctaterugose, with sparse, small, smooth areas, glabrate. Epicnemial carina long and curved in middle of mesopleuron (Fig. 25 B). Sternaulus indistinct. Juxtacoxal carina indistinct from other metapleural rugae. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rsm absent, distal abscissa of vein M spectral; ramulus absent; length of vein Cu equal to 2 cu-a (Fig. 25 A). Hind wing with cu-a strongly inclivous and interrupted at lower 0.2. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa punctate along lateral longitudinal portion, elsewhere smooth. Hind femur stout, 4.35 times as long as its maximum width. Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.55 times as long as length of hind basitarsus. Propodeum steeply sloping in lateral view, with crowded coarse punctures, almost alveolate. Propodeal carinae indistinct except for vestiges of longitudinal carinae near insertion of T 1. METASOMA (Fig. 25 E). T 1 approximately 2.5 times as long as apically broad; petiole flat, smooth; postpetiole wide, with distinct punctures; median dorsal carina absent; dorsolateral and ventrolateral carinae distinct; spiracle small, round, not prominent. T 2 – T 5 with coarse, adjacent punctures, almost alveolate. T 2 widened posteriorly, approximately 0.6 times as long as apically broad. T 3 approximately 0.6 times as long as apically broad, parallel-sided. Ovipositor 0.9 times as long as hind basitarsus. COLOUR. Head and mesosoma mostly blackish, mesosoma mostly ferruginous. Head black; mouthparts fuscous and whitish; scape, pedicel and basal portion of flagellum light brownish, antenna dark brown towards apex. Mesosoma ferruginous; ventral portion of pronotum, fore coxa and trochanters dark brown; fore and mid femora basally brown, light brown towards apex. Fore tibia and tarsus light brown; hind tibia light brown with anterior face whitish on basal 0.7; mid tarsus light brown and whitish; hind trochanters, femur, apical 0.6 of tibia and T 2 – T 5 dark brown; basal 0.4 of tibia and basitarsus whitish. Wings hyaline, with large apical infuscate band, but apical margin hyaline. Mesosoma mostly blackish; T 1 ferruginous on anterioir 0.4; T 2 light brown on anterior 0.6; T 6 – T 8 whitish.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B184C7BFE29FEFC9DC6CFFD.taxon	discussion	Remarks This species is similar to P. striator (Aubert, 1961), from which it can be distinguished by the following combination of characters: mandibles sub-basally swollen, with a basal, transverse groove; propodeum sloping gradually; mesosoma mostly reddish (Fig. 25 A); fore wing with one infuscate transverse band; antenna, scape and trochanters without white colouration.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B184C7BFE29FEFC9DC6CFFD.taxon	distribution	Distribution Philippines (Luzon), Japan (Okinawa).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1A4C7FFD94FEFC9B18CB44.taxon	description	Figs 26 – 27	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1A4C7FFD94FEFC9B18CB44.taxon	diagnosis	Diagnosis Body short and stout (Fig. 26 A). Postero-ocellar distance 3.6 times ocular-ocellar distance (Fig. 27 E). Epomia indistinct. Epicnemial carina long and curved in middle of mesopleuron (Fig. 26 C). Propodeal carinae absent except for vestiges of posterior transverse carina and apical portion of dorsal longitudinal carina (Fig. 27 B). Ovipositor 0.3 times as long as hind basitarsus (Fig. 27 C). Body mostly yellow, with head, most of antenna, apical part of hind tibia and hind margin of T 1 – T 4 black, scape and palpus white (Fig. 26 A). Wings hyaline (Fig. 27 F).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1A4C7FFD94FEFC9B18CB44.taxon	etymology	Etymology The specific name is derived from the name of the type locality, Singapore.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1A4C7FFD94FEFC9B18CB44.taxon	materials_examined	Material examined Holotype SINGAPORE • ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 00.3 ″ N, 103 ° 48 ′ 46.5 ″ E; Malaise trap (NS 1); 13 – 20 Mar. 2013; NUS leg.; barcode: ZRC _ 39348; LKCNHM. Paratypes BRUNEI • 1 ♀; Belait District, Labi (mukim); 200 m a. s. l.; mixed dipterocarp forest; Aug. – Sep. 1979; I. Gauld leg.; NHMUK. MALAYSIA • 1 ♀; Sarawak, 4 th Division, Gunung Mulu National Park; May – Jun. 1978; N. M. Collins, RGS Expedition leg.; NHMUK. SINGAPORE • 1 ♀; same collection data as for holotype; 3 – 10 Jul. 2013; barcode: ZRC _ BDP 0039318; NHRS PT-HEVA 000010862 • 1 ♀; Nee Soon Swamp Forest; 1 ° 23 ′ 04.2 ″ N, 103 ° 48 ′ 40.7 ″ E; Malaise trap (NS 2); 5 – 12 Mar. 2014; NUS leg.; barcode: ZRC _ 39559; LKCNHM.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1A4C7FFD94FEFC9B18CB44.taxon	description	Description Female (holotype) SIZE. Fore wing length 3.3 mm. Body short and stout, 1.28 times as long as high (Fig. 26 A). HEAD. Face 2.0 times as broad as high, centrally slightly convex; finely granulose (Fig. 26 B). Clypeal suture very weak. Clypeus slightly convex, matte, slightly striate apically, evenly convex downwards, with sharp apical margin. Mandible basally smooth; teeth sharp, of subequal length. Malar space granulated, 0.8 times as long as basal mandible width. Gena glossy, smooth and shiny, with weak transverse carina dorsally between vertex and eye. Vertex (Fig. 27 E) finely punctate, distance between punctures approximately 1 – 1.2 times diameter of punctures, posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Postero-ocellar distance 3.6 times ocularocellar distance (Fig. 27 E). Frons finely coriarious, lower portion slightly concave. Antenna slightly shorter than body, with 27 flagellomeres, median portion moderately thickened. Occipital carina complete. MESOSOMA. Pronotum coarsely punctate. Epomia indistinct. Mesoscutum (Fig. 26 E) wide and short, convex, with coarse, dense punctures. Notaulus indistinct. Scutellum slightly convex, with coarse dense punctures. Postscutellum transverse, smooth. Centre of mesopleuron smooth, but outer areas (near epicnemial carina, speculum and sternaulus) densely punctate (as pronotum and mesoscutum), pubescent with yellowish setae. Epicnemial carina long and curved in middle of mesopleuron (Fig. 26 C). Sternaulus distinct, extending over entire mesopleuron. Metapleuron with distinct shallow punctures, distance between punctures 0.2 times diameter of puncture. Juxtacoxal carina distinct, but short. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of vein M spectral; ramulus absent; length of vein Cu slightly longer than 2 cu-a (Fig. 27 F). Hind wing with cu-a strongly inclivous and interrupted at lower 0.2. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half slightly bent. Hind coxa anteriorly punctate, posteriorly smooth. Hind femur stout, length 4.2 times its maximum width. Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.56 times as long as length of hind basitarsus. Propodeum steeply sloping in lateral view, with sparse coarse punctures, posterocentrally smoother (Figs 26 B – C). Propodeal carinae absent except for vestiges of posterior transverse carina and apical portion of lateromedian longitudinal carina (Fig. 27 B). METASOMA (Fig. 27 A). T 1 2.0 times as long as apically broad, smooth, petiole flat, concave; postpetiole wide, without median dorsal carina; dorsolateral and ventrolateral carinae distinct; spiracle small, round, slightly prominent. T 2 – T 6 coarsely and sparsely punctate. T 2 widened posteriorly, 0.5 times as long as apically broad, with distinct gastrocoelus. T 3 0.6 times as long as apically broad, parallel-sided. Ovipositor 0.3 times as long as hind basitarsus (Fig. 27 C). COLOUR. Body mostly yellow. Antenna dorsally, head, posterior stripe on T 1 – T 4 and apical part of hind tibia black. Apex of mandible reddish. Antenna ventrally brownish. Scape ventrally, palpi, fore and middle trochanters, fore femur, apical part of metasoma and hind tarsus pale yellow. Male Unknown. Variation Fore wing 3.3 – 3.5 mm long. Antenna with 26 – 27 flagellomeres. Specimen from Brunei with black transverse stripe on apex of mesoscutum; black spots on hind tibia smaller; metasoma without distinct black stripes, but slightly darkened on posterior portion; ovipositor 0.4 times as long as hind basitarsus.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1A4C7FFD94FEFC9B18CB44.taxon	discussion	Remarks This species is similar to P. hainanensis sp. nov., but it can be distinguished from the latter by having a distinctly stouter body (1.28 times vs 1.60 times as long as high in P. hainanensis sp. nov.) and the following combination of characters: T 1 2.0 times as long as apically broad (1.8 times in P. hainanensis sp. nov.), ovipositor 0.3 times as long as hind basitarsus (1.3 times in P. hainanensis sp. nov.), mesopleuron entirely yellow and hind margin of T 1 – T 4 black or at least distinctly darkened.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1F4C71FDE9F96E9E89CBA1.taxon	description	Fig. 28	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1F4C71FDE9F96E9E89CBA1.taxon	diagnosis	Diagnosis Body short and stout. Mesopleuron striated. Propodeal carinae partly present. Ovipositor 1.5 times as long as hind basitarsus. Body mostly black, with middle flagellomeres dorsally, palpi, trochanters, basal part of hind tibia and T 6 white. Wings infuscate by two bends.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1F4C71FDE9F96E9E89CBA1.taxon	materials_examined	Material examined Holotype PHILIPPINES • ♀; Mindoro, Mt Dong; 18 Apr. 1954; J. Aubert and H. Townes leg.; photographs examined; USUC.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1F4C71FDE9F96E9E89CBA1.taxon	description	Description Female (holotype) SIZE. Fore wing length 4.0 mm. Body short and stout, 1.25 times as long as high (Fig. 28 A). HEAD. Face 1.45 times as broad as high, centrally slightly convex, finely granulose (Fig. 28 D). Clypeal suture indistinct. Clypeus slightly convex, matte, transversely striate, apically evenly convex downwards, with sharp apical margin. Mandible basally smooth; teeth sharp, dorsal tooth broad and decurved, much longer than ventral one. Malar space granulated, 0.6 times as long as basal mandible width. Gena glossy, smooth and shiny, with no distinct carina dorsally between vertex and eye. Vertex smooth to coriarious; posterior portion from behind ocelli to occipital carina slanted almost vertically, slightly concave. Frons transversely striate, lower portion slightly concave. Antenna slightly shorter than body, with 21 flagellomeres, median portion strongly thickened. MESOSOMA. Pronotum rugulose. Epomia indistinct. Mesoscutum wide and short, convex, mostly coriarious, with short transverse striae over notaulus. Notaulus distinct, reaching past half length of mesoscutum. Scutellum convex, with strong, regularly-spaced longitudinal striae. Postscutellum transverse, smooth. Mesopleuron mostly smooth, with three vertical lines of transverse striae extending near epicnemium, speculum and posterior margin, with sparse, small smooth areas, sparsely pilose. Epicnemial carina short, extending through ventral 0.4 of mesopleuron (Fig. 28 C). Sternaulus distinct, extending over entire mesopleuron. Juxtacoxal carina indistinguishable from other metapleural rugae. Submetapleural carina complete. Fore wing with 1 cu-a distinctly distad of M becoming Rs, 3 rs-m absent, distal abscissa of M spectral; ramulus absent; length of vein Cu distinctly longer than 2 cu-a. Hind wing with cu-a strongly inclivous and interrupted at lower 0.2. Distal abscissa of Cu spectral. Distal abscissa of M spectral. Inner profile of fore basitarsus with basal half distinctly bent. Hind coxa punctate along lateral longitudinal portion, elsewhere smooth. Hind femur stout, with distinct ridge-like swelling on basal 0.3 of posterior face. Basal portion of hind tibia slender, gradually thick toward apex. Longer spur of hind tibia 0.35 times as long as hind basitarsus. Propodeum steeply sloping in lateral view, centrally smooth, anterior and lateral portions rugulose. Propodeal carinae present and distinct. METASOMA (Fig. 28 A). T 1 approximately 2.5 times as long as apically broad; portion just before posterior apex bulging and distinctly broader than posterior margin; petiole flat, laterally smooth, dorsally with fine, longitudinal striae extending into postpetiole; median dorsal carina absent; dorsolateral and ventrolateral carinae weak to almost indistinct, fading towards posterior apex; spiracle small, round, not prominent. T 2 and T 3 covered with fine but distinct longitudinal striae. T 2 long and widened posteriorly, approximately 1.4 times as long as apically broad. T 3 approximately 1.0 times as long as apically broad, parallel-sided. Ovipositor 1.5 times as long as hind basitarsus. COLOUR. Body almost entirely blackish, with legs mostly brownish to orange. Head black; scape and pedicel ferruginous-brown; flagellum brown, flagellomeres 6 – 10 dorsally white. Apex of mandible reddish. Palpi whitish. Mesosoma black. Fore leg ferruginous except trochanter whitish; mid and hind coxae brown, trochanters whitish; remainder of mid leg fuscous, except basal 0.6 of dorsal face of tibia whitish. Hind leg apicad of trochanter dark brown, except basal 0.25 of tibia whitish. Fore wing with distinct median and subapical infuscate bands. T 4 – T 7 brownish, T 5 – T 7 with posterior whitish band, S 2 whitish.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1F4C71FDE9F96E9E89CBA1.taxon	discussion	Remarks This species is similar to P. papuator (Aubert, 1961), from which it can be distinguished by the following combination of characters: frons transversally striated, shiny, as well as mesonotum and mesosternum, ovipositor 1.5 times as long as hind basitarsus (2.1 times in P. papuator).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B1F4C71FDE9F96E9E89CBA1.taxon	distribution	Distribution Philippines (Mindoro).	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B114C70FD72F9199DA1CF37.taxon	materials_examined	Material examined BRUNEI • 5 ♂♂; Labi; 200 m a. s. l.; mixed dipterocarp forest; Aug. – Sep. 1979; I. Gauld leg.; NHMUK • 1 ♂; Sep. 1982; N. Stork leg.; NHMUK. PHILIPPINES • 2 ♂♂; Leyte Island, Bay Bay, Visca Forest; 5 – 13 Sep. 1980; L. Tuangga leg.; NHMUK.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
324187BE3B114C70FD72F9199DA1CF37.taxon	discussion	Remarks For eight male specimens, any morphological association with known females was not evident. Some of them could correspond to the males of P. angkor sp. nov., and at least some of these specimens seem to belong to a distinct taxon. Males of Palpostilpnus, however, show a complex dynamic of morphological variability, making its interpretation too risky with few specimens and without the corresponding female. Hence, the specimens in question are better interpreted, at least for now, as species inquirenda. Further studies with a refined population sampling of the genus should shed light on the interpretation of these specimens and of additional, undescribed taxa.	en	Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian, Barthélémy, Christophe (2019): Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species. European Journal of Taxonomy 582: 1-63, DOI: 10.5852/ejt.2019.582
