Phanerotoma crassitibialis, 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 : 17-20

Phanerotoma crassitibialis sp. nov.

urn:lsid:zoobank.org:act:5AE9232B-6E9D-471D-8381-18F6FF2E56C2

Fig. 7

Diagnosis

Vein r of fore wing angled with vein 3-SR ( Fig. 7F ); subapical segments of ♀ antenna widened medially ( Fig. 7E ); vein 2-M of fore wing infuscate ( Fig. 7F ); vein 1-M robust apically ( Fig. 7F ); apical half of hind femur yellowish brown ( Fig. 7I ); third metasomal tergite about 1.4× as long as second tergite ( Fig. 7H ); first discal cell of fore wing more transverse and less robust ( Fig. 7F ); vein r of fore wing somewhat wider than vein 3-SR.

Etymology

Named after the rather swollen hind tibia, from the Latin ‘ crassus ’ for ‘thick’ and ‘ tibia ’ for part of a leg.

Type material

Holotype CHINA – Hainan • ♀; Jianfengling Mt. ; 4–7 Jun. 2007; Jie Zeng leg.; ZJUH No. 200711163 .

Description

Female

MEASUREMENTS. Length of body 3.7 mm, of fore wing 3.3 mm.

COLOURATION. Yellow; stemmaticum, teeth of mandible, tegula and propodeum basally dark brown; first and second tergites medially, legs except hind femur and tibia, and tarsus apically, yellow, hypopygium ivory.

HEAD. Width 1.5× median length in anterior view ( Fig. 7D ) and part of head above eye in lateral view 0.2× height of eye ( Fig. 7C ); antenna with 23 segments and 1.4× as long as fore wing, subapical antennal segments not moniliform ( Fig. 7E ), fourth, third and penultimate segments 2.2, 2.9 and 2.8× as long as wide in lateral view; area of stemmaticum mainly granulate; OOL: diameter of posterior ocellus: POL=22: 7: 4; eye 1.8× as long as temple in dorsal view ( Fig. 7B ); 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 obliquely rugose and without median carina; clypeus mostly smooth, shiny and 0.7× minimum width of face, intertentorial distance 1.6× minimum width between clypeus and eye, clypeus long erect setose and with 3 small and close teeth medio-ventrally ( Fig. 7D ); eye large and in lateral view 1.6× as wide as temple ( Fig. 7C ), in anterior view its height 0.7× minimum width of face; upper condyle of mandible far below lower level of eyes ( Fig. 7D ); malar space 0.9 × as long as basal width of mandible; lower tooth of mandible very robust and 0.8× length of apical tooth ( Fig. 7K ).

MESOSOMA ( Fig. 7G ). Length 1.7 × 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 and with seven carinae ( Fig. 7G ); scutellum triangular, flat, distinctly granulate-rugose and rather shiny; metanotum without short median carina anteriorly and small tooth protruding posteriorly; propodeum coarsely reticulate-rugose, no transverse or median carinae, latero-posteriorly tuberculate.

WINGS. Fore wing 3.2 × as long as its maximum width; 1-R1 1.4× as long as pterostigma; r issued rather far beyond middle of pterostigma and almost as long as 3-SR; distance between 1-R1 and wing apex 0.4× 1-R1; 2-SR straight ( Fig. 7F ); SR1 straight; 2-SR+M present; parastigma small; 1-CU1 0.4× as long as vein 2-CU1, cu-a oblique and 0.7× as long as 1-CU1; r: 3-SR: SR1 =1: 1:6; 2-SR: 3-SR: r-m=2:1: 1; 2-M straight apically and curved basally ( Fig. 7F ).

LEGS ( Fig. 7J ). Hind femur moderately wide and with satin sheen, 4.8× as long as wide and rather widened submedially; hind tibia rather swollen; middle tibia with medium-sized ivory blister; hind coxa smooth and shiny.

METASOMA ( Fig. 7H–I ). Carapace elliptical in dorsal view, 1.7 × as long as wide and 2.0× as long as mesosoma; first and second tergites coarsely and densely longitudinally rugose; second suture wide; third tergite 1.4× as long as second tergite and laterally weakly curved, in lateral view slightly convex posteriorly, in dorsal view convex medially, densely longitudinally rugose and rounded ( Fig. 7H ), lateral lamella narrow, medio-apically truncate; ovipositor sheath narrow and parallel-sided ( Fig. 7I ), with some long and erect setae; hypopygium apically acute, lacking an up-curved triangle or apical spine ( Fig. 7I ).

Male

Unknown.

Host

Unknown.

Distribution

China (Hainan).

Figures

Fig. 7. Phanerotoma crassitibialis sp. nov., holotype, ♀ (ZJUH No. 200711163). A. Habitus, lateral view. B. Head, dorsal view. C. Head, lateral view. D. Head, anterior view. E. Antenna, lateral view. F. Fore wing. G. Mesosoma, dorsal view. H. First third of metasomal tergites, dorsal view. I. Metasoma, lateral view. J. Hind leg. K. Mandible, ventral view. Scale bars: A–J =1 mm; K =0.2 mm.