Phanerotoma fuscisternalis, Luo & Achterberg & He & Tang & Chen, 2025

Luo, Wen-Juan, Achterberg, Cornelis Van, He, Jun-Hua, Tang, Pu & Chen, Xue-Xin, 2025, Revision of the genus Phanerotoma Wesmael (Hymenoptera, Braconidae, Cheloninae) from China, with descriptions of twenty-four new species, European Journal of Taxonomy 1003, pp. 1-110 : 33-35

Phanerotoma fuscisternalis sp. nov.

urn:lsid:zoobank.org:act:928E58E8-E786-4BA4-A746-BA9F513E3474

Fig. 13

Diagnosis

Third tergite of metasoma truncate posteriorly ( Fig. 13I ); clypeus with three small teeth ventrally ( Fig. 13E ); hypopygium acute apically, with medium-sized and slender triangular protuberance ( Fig. 13J ); apical half of hind femur dark brown ( Fig. 13F ); pterostigma dark brown ( Fig. 13G ); lower tooth of mandible 0.2× as long as apical tooth ( Fig. 13L ).

Differential diagnosis

If carapace distinctly convex apically and apical half of hind tarsus infuscate, see West Palaearctic P. dentata ( Panzer, 1805) .

Etymology

Named after the dark brown mesosoma, from the Latin ‘ fuscus ’ for ‘dusky, dark’ and ‘ sternum ’ for ‘breastbone’.

Type material

Holotype

CHINA – Jilin • ♀; Changchun; 23 Jul. 1982; Juxian Lou leg.; ZJUH No. 950973.

Paratypes (11 ♀♀, 5 ♂♂)

CHINA – Jilin • 5 ♂♂; same data as for holotype; ZJUH Nos 950965, 950968, 950969, 950972, 950974 • 4 ♀♀; same data as for preceding; ZJUH Nos 950967, 950966, 950970, 950971 . – Zhejiang • 1 ♀; Longquan; Fengyang Mt. ; 30 Jul. 2007; Jingxian Liu leg.; ZJUH No. 200801447 . – Shaanxi • 1 ♀; Fengxian ; 34°15′N 106°58′E; elev. 1501 m; 21-22 Aug. 2013; Bingbing Tu leg.; ZJUH No. 201300366LT. – Taiwan • 1 ♀; Baxian Mt. ; 4 Apr. 2011; Pu Tang leg.; ZJUH No. 202300115 . – Henan • 1 ♀; Jigong Mt. ; 10 Jul. 1997; Xuexin Chen leg.; ZJUH No. 973593 • 1 ♀; Baotianman ; 13-15 Jul. 1998; Xuexin Chen leg.; ZJUH No. 991769 . – Hebei • 1 ♀; Handan ; 17 Aug. 1977; Zhongshi Ma leg.; ZJUH No. 780151 . – Heilongjiang • 1 ♀; Jingbo River ; 26 Aug. 1995; Juxian Lou leg.; ZJUH No. 962184 .

Description

Female

MEASUREMENTS. Length of body 4.3 mm, of fore wing 3.6 mm.

COLOURATION. Yellow; stemmaticum, parastigma, pterostigma, mesonotum except medially, side of scutellum, propodeum laterally, second tergite laterally, third tergite largely and hind femur apically dark brown, hind tibia with dark brown patch; temple posteriorly in dorsal view, teeth of mandible and scutellum brown.

HEAD. Width 1.4 × median length in anterior view ( Fig. 13E ) and part of head above eye in lateral view 0.3× height of eye ( Fig. 13D ); antenna with 23 segments, six subapical segments moniliform, and antenna gradually narrowed and slender ( Fig. 13F ); area of stemmaticum mainly granulate; OOL: diameter of posterior ocellus: POL=32: 12:9; eye 1.4 × as long as temple in dorsal view ( Fig. 13C ); frons with longitudinal rugae medially, rugose laterally and with weak median ridge; vertex granulate-rugose and with satin sheen; temple largely striate and with satin sheen; face diagonally rugose laterally and transversely rugose medially, without median carina; clypeus smooth and shiny, about as wide as minimum width of face, intertentorial distance 2.4× minimum width between clypeus and eye, clypeus long erect setose and with 3 small teeth medio-ventrally ( Fig. 13E ); eye medium-sized, in lateral view 1.5× as wide as temple ( Fig. 13D ), in anterior view its height 0.7× minimum width of face; upper condyle of mandible close to lower level of eyes ( Fig. 13E ); malar space as long as basal width of mandible; lower tooth of mandible 0.2× length of apical tooth, short and minute ( Fig. 13L ).

MESOSOMA ( Fig. 13H ). Length 1.4× its width in lateral view; side of pronotum mainly rugose, but dorsally nearly smooth; mesoscutum densely rugose and rather shiny, densely setose; notauli hardly indicated; scutellar sulcus wide ( Fig. 13H ); scutellum triangular, flat, longitudinally rugose and rather shiny; metanotum with short median carina anteriorly and small tooth protruding posteriorly; propodeum coarsely reticulate-rugose, latero-posteriorly tuberculate, no transverse or median carinae.

WINGS. Fore wing 2.7× as long as its maximum width; length of 1-R1 1.8× as long as pterostigma; r of fore wing 0.5× as long as 3-SR; distance between 1-R1 and wing apex 0.5× 1-R1; 2-SR distinctly bent ( Fig. 13G ); SR1 nearly straight; 2-SR+M present; pterostigma large, parastigma large; 1-CU1 0.3× as long as vein 2-CU1, cu-a oblique and 1.2 × as long as 1-CU1; r: 3-SR: SR1 =7: 15: 43; 2-SR: 3-SR: r-m=5:3: 2; 2-M bent ( Fig. 13G ).

LEGS ( Fig. 13K ). Hind femur with satin sheen, 3.5× as long as wide and widened submedially; hind tibia swollen ( Fig. 13K ) and with dark brown patch; middle tibia with large yellow blister; hind coxa smooth and shiny.

METASOMA ( Fig. 13I–J ). Carapace elliptical in dorsal view, 1.7× as long as wide and 1.2× as long as mesosoma; first and second tergites coarsely and densely longitudinally rugose; second suture wide; third tergite 1.9× as long as second tergite and laterally weakly curved, in dorsal view densely rugose and truncate ( Fig. 13I ), lateral lamella wide, apically deeply emarginate; ovipositor sheath narrow ( Fig. 13J ), with some long and erect setae; hypopygium apically acute, with up-curved medium-sized and slender triangular protuberance ( Fig. 13J ).

VARIATION. Length of fore wing of female 4.2–5.5 mm; vein cu-a 1.0–1.2× as long as vein 1-CU1; lower tooth of mandible 0.2–0.4 × as long as length of apical tooth; apical half of hind femur brownish or dark brown.

Male

Very similar to female, but six subapical antennal segments cylindrical and longer ( Fig. 13B ); eye large, in dorsal view 1.7× as long as temple.

Host

Unknown.

Distribution

China ( Taiwan, Zhejiang, Shaanxi, Jilin, Henan, Hebei, Heilongjiang).

Figures

Fig. 13. Phanerotoma fuscisternalis sp. nov., holotype, ♀ (ZJUH No. 950973). A. Habitus, lateral view. B. Apical antenna, lateral view. C. Head, dorsal view. D. Head, lateral view. E. Head, anterior view. F. Antenna, lateral view. G. Fore wing. H. Mesosoma, dorsal view. I. First third of metasomal tergites, dorsal view. J. Metasoma, lateral view. K. Hind leg. L. Mandible, ventral view. Scale bars: A–K =1 mm; L= 0.2 mm.