Nepalomyia fogangensis, Wang, Mengqing, Yang, Ding & Grootaert, Patrick, 2009

Wang, Mengqing, Yang, Ding & Grootaert, Patrick, 2009, New species of Nepalomyia from China (Diptera: Dolichopodidae), Zootaxa 2162, pp. 37-49 : 47

Nepalomyia fogangensis sp. nov.

( Figs. 16−18 )

Diagnosis. Postocular bristles (including posteroventral hairs) black. Cercus without basal tubercle, but with pale short hairs; hypandrium short and wide, deeply trifurcated ( Fig. 18 ); aedeagus long with swollen apex.

Description. MALE. Body length 2.3 mm, wing length 2.1 mm.

Head dark metallic green with gray-brown pollen; face with pale gray pollen. Hairs and bristles of head black; postocular bristles (including posteroventral hairs) black. Ocellar tubercle weakly raised, with two strong oc and two short posterior hairs. Antenna black; third antennal segment longer than wide ( Fig. 16 ), apically with a distinct lower corner; arista blackish, long, with short blackish hairs. Proboscis brownish with black hairs; palpus brownish with black hairs and one black apical bristle.

Thorax dark brown; pleuron brownish, pteropleuron blackish. Hairs and bristles of thorax black; five strong dc, 5–6 irregularly paired acr; humerus with one long bristle and one short hair; one long ph, one somewhat short ih, one short su, one long anterior and one somewhat short posterior npl, one somewhat short anterior and one long posterior sa, one long psa; scutellum with two pairs of bristles, outer pair weak and hairlike. Propleuron with one hair and 1 bristle on lower portion.

Legs yellow; mid coxa with posterior upper corner black; hind tarsus brown. Hairs and bristles on legs black; fore coxa with 4–6 anterior bristles, mid coxa with one anterior bristle, hind coxa with one outer bristle. Mid and hind femora each with one preapical bristle. Fore tibia apically with three short bristles; mid tibia with two ad and two pd, apically with four bristles; hind tibia with two ad and 3–4 pd, apically with three bristles. Hind tarsomere 1 with two v at base and a basal spur curved upward. Relative lengths of tibia and tarsomeres LI 3.2: 2.0: 1.2: 1.0: 0.7: 0.5; LII 3.6: 2.2: 1.3: 1.1: 0.7: 0.5; LIII 5.0: 1.5: 1.9: 1.4: 0.8: 0.5.

Wing hyaline, tinged with gray; veins dark brown, R4+5 and M1 parallel apically; CuAx ratio (length of mcu / length of CuA distal section) 0.45. Calypter dark brown with black hairs. Halter brown.

Abdomen brown except lateral margin brownish yellow; hairs and bristles black.

Genitalia ( Figs. 17–18 ): epandrium with distinct lateral tubercle bearing one pale short middle hair and one long apical bristle; surstylus on epandrium with dorsal lobe thick, bifurcated apically, middle lobe rather thick, ventral lobe bifurcated with short apical hairs; cercus without basal tubercle, but with pale short hairs; hypandrium short and wide, deeply trifurcated, with one lateral lobe long with curved apex, another lateral lobe short and straight, and middle lobe short, asymmetrical in ventral vision; aedeagus long with swollen apex.

FEMALE. Unknown.

Type material. Holotype male, Guangdong: Fogang, Guanyinshan mountain, 15. V. 2004, Patrick Grootaert. Paratype one male, Hainan: Wuzhishan, 17. V. 2007, Kuiyan Zhang.

Distribution. Guangdong, Hainan.

Etymology. The specific epithet derives from the type locality Fogang (Guangdong).

Comments. The species looks like the species of the pallipilosa group in having the trifurcated hypandrium, but the hypandrium is not symmetrical in ventral view.

Figures

FIGURES 16 – 18. Nepalomyia fogangensis sp. nov. Male. 16. 3 rd antennal segment, and arista lateral view; 17. genitalia, lateral view; 18. hypandrium, right lateral view.