Nepalomyia damingshanus, 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 : 413

Nepalomyia damingshanus sp. nov. ( Fig. 1 )

Male. Body length 2.4–2.6 mm; wing length 2.4–2.5 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) black. Ocellar tubercle weakly raised, with 2 strong ocellar bristles and 2 short posterior hairs. Antenna blackish; first flagellomere almost as long as wide, with distinct lower and upper apical corners; arista black, with short basal segment. Proboscis brown 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 dorsocentral bristles, 5–6 irregularly paired acrostichal bristles; 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 supraalar bristles, 1 long postalar bristle; scutellum with 2 pairs of bristles, outer pair weak and short. Propleuron with 1 blackish hair on upper portion.

Legs yellow, tarsus brownish. 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. Mid and hind femora each with 1 preapical bristle. Fore tibia with 2 ad near apex; mid tibia with 2 ad, 2 pd, and apical 1/4 with 1 ad, 1 pd and 1 pv; hind tibia with 2 ad at basal half, a row of 5 pd at apical half. Fore tarsomeres 1 with 3 – 4 v at basal half, apical half of fore tarsomere 1 and whole fore tarsomeres 2–4 with a row of weak and curved ventral hairs; hind tarsomere 1 with upwardly curved spur. Relative lengths of tibia and 5 tarsomeres of LⅠ 3.0:2.4:1.6:1.4:0.6:0.6; LII 4.5:2.4:1.6:1.4:0.8:0.6; LIII 5.6:1.1:2.4:1.4:1.0:0.5.

Wing hyaline, with grayish; veins dark brown, R 4+5 and M parallel apically; CuAx about 0.6. Squama black, bearing black long hairs. Halter brown.

Abdomen dark metallic green, with gray brown pollinosity. Hairs and bristles on abdomen black.

Male genitalia. Epandrium with 2 short lateral process, each bearing long apical bristle; surstylus on epandrium with long and thick dorsal lobe, thick mid lobe with thin apical half bearing hairs and bristles, ventral lobe thin with apical bristles. Cercus long with wide base, without distinct basal tubercle but bearing 2 clusters short hairs at basal 1/3 and half, apical with curved process and hairs; hypandrium long and deeply bifurcated, symmetrical in ventral view; aedeagus long and thin, with bifurcated apex.

Female. Unknown.

Holotype male, Guangxi, Nanning, Mt. Daming , elev. 1 300 m, 9 August 2011, leg. Hui Dong . Other material 1 male, Zhejiang, Mt. Tianmu , 6 July 2012 (Markov trap) .

Distribution. Guangxi, Zhejiang.

Remarks. The new species is similar to N. henanensis (Yang, Yang & Li) , but can be separated from the latter by having 2 ad on fore tibia, and epandrium bearing 2 lateral processes. In N. henanensis , the fore tibia has no ad or pd, and the epandrium bearing no lateral process (Yang, Yang & Li).

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

Figures

Fig. 1. Nepalomyia damingshanus sp. nov., male, genitalia, lateral view.