Phanerotoma crassitibialis sp. nov.

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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).