Nepalomyia dongae, Wang & Chen & Yang, 2014

Wang, Meng-Qing, Chen, Hong-Yin & Yang, Ding, 2014, New species of Nepalomyia henanensis species group from China (Diptera: Dolichopodidae: Peloropeodinae), Zoological Systematics 39 (3), pp. 411-416 : 414

Nepalomyia dongae sp. nov. ( Figs 2–4 )

Male. Body length 2.5 mm; wing length 2.5 mm. Head dark metallic green with grayish-brown pollinosity; face with pale-gray pollinosity. Hairs and bristles on head black; postocular bristles (including ventral hairs) pale yellow. Ocellar tubercle weakly raised, with 2 strong ocellar bristles and 2 short posterior hairs. Antenna blackish; first flagellomere almost as long as wide ( Fig. 2 ), with distinct lower and upper apical corners; arista located in apical incision, black, with short basal segment. Proboscis blackish with black hairs; palpus black with black hairs and 1 black apical bristle.

Thorax dark metallic green with gray pollinosity. Hairs and bristles on thorax black; 5 strong dc, 6–7 irregularly paired acr; 1 long humeral bristle and 1 short hair, 1 long posthumeral bristle, 1 somewhat short inner humeral bristle, 1 short sutural bristle, 1 long anterior and 1 somewhat short posterior notopleural bristles, 1 somewhat short anterior and 1 long posterior supra-alar bristles, 1 long postalar bristle; scutellum with 2 pairs of bristles, outer pair weak and short. Propleuron with 1 blackish hair on upper portion and 2 short pale hairs and 1 black bristle on lower portion.

Legs (mid and hind tarsomeres 3–5 broken) brownish, tarsus brown. Hairs and bristles on legs black; fore coxa with 5–6 anterior bristles, mid coxa with 2–3 anterior yellow bristle, hind coxa with 1 outer bristle near middle. Fore femur with 1 av and 1 pv apically, mid femur with 1 preapical bristle and row of short v. Fore tibia with row of strong d, and 4–5 weak and curved ventral hairs; mid tibia with 2 ad, 2 pd, and 4 apical bristles; hind tibia with 3 ad, 2 pd, and row of short v. Fore tarsomeres 1–5 each with row of weak and curved ventral hairs, tarsomere 3 distincely longer than tarsomeres 2 and 4; hind tarsomere 1 with upwardly curved spur and 3 strong v at base, hind tarsomere 2 with row of v. Relative lengths of tibia and 5 tarsomeres of LⅠ2.0:1.2:0.5:0.8:0.5:0.3; LII3.0:1.5:1.0:?:?:?; LIII3.5:0.3:1.8:?:?:?.

Wing hyaline, with grayish; veins dark brown, R 4+5 and M parallel apically; CuAx about 0.33. Squama dark brown, bearing black long hairs. Halter brown.

Abdomen dark metallic green, with gray brown pollinosity. Hairs and bristles on abdomen black; venter with some pale hairs.

Male genitalia ( Figs 3–4 ). Epandrium with slender lateral process, bearing 2 long apical bristles; surstylus on epandrium with wide dorsal lobe, with curve apex bearing hairs, mid lobe somewhat swollen in the middle portion and bending inward, ventral lobe thin and short with apical bristle. Cercus with wide base nearly square and acute apex, with indistinct basal tubercle bearing long hairs, with spine-like bristles and hairs at mid and apical portion; hypandrium short, with slightly convex and symmetrical in ventral view; aedeagus wide with swollen near apex.

Female. Unknown.

Holotype male, Guangxi, Nanning, Mt. Daming , elev. 1 300 m, 9 August 2011, leg. Hui Dong.

Distribution. Guangxi.

Remarks. The new species is similar to N. jinshanensis Wang, Yang & Grootaert bearing spine-like bristles on cercus, but it can be separated from the latter by having first flagellomere with distinct upper and lower corners, and cercus without distinct basal tubercle. In N. jinshanensis , the first flagellomere has no upper corner, and the cercus has distinct basal tubercle (Wang, Yang & Grootaert, 2009).

© Zoological Systematics, 39(3): 411–416

Figures

Figs 2–4. Nepalomyia dongae sp. nov., male. 2. First flagellomere. 3. Genitalia, lateral view. 4. Hypandrium, ventral view.