Dolichopus (Dolichopus) turanicus Stackelberg

Zhang, Lili & Yang, Ding, 2008, New species of Dolichopus Latreille, 1796 from China (Diptera: Dolichopodidae), Journal of Natural History 42 (39 - 40), pp. 2515-2535 : 2532-2534

Dolichopus (Dolichopus) turanicus Stackelberg

( Figure 6 )

Dolichopus (Dolichopus) turanicus Stackelberg, 1933, p. 101 .

Dolichopus turkestani Stackelberg, 1927, p. 57 .

Material examined

One male, China: Qinghai Prov.: Menyuan, Haibeizhan , 15 July 1989, coll. Wei Meicai; one female , China: Qinghai Prov.: Menyuan, Haibeizhan , 13 July 1989, coll. Wei Meicai; one female , China: Qinghai Prov.: Menyuan, Haibeizhan , 15 July 1989, coll. Wei Meicai; one female , China: Qinghai Prov.: Menyuan, Haibeizhan , 13 July 1989, coll. Wei Meicai.

Diagnosis

Postocular bristles black. Antenna wholly black, first flagellomere 1.6 times longer than wide. Legs black; femora black except apical 2/5 of fore femur and apical 1/3–1/ 4 of mid and hind femora yellow; fore tarsomeres 4–5 black and flattened.

Redescription

Male. Head metallic green with pale gray pollen. Face with gray brown pollen, distinctly wider than first flagellomere. Hairs and bristles black, postocular bristles (including postero-ventral hairs) wholly black. Antenna ( Figure 6A ) wholly black; first flagellomere 1.6 times longer than wide; arista black, with basal segment 0.46 times as long as apical segment. Proboscis black with blackish hairs; palpus black with black hairs and one black apical bristle.

Thorax dark metallic green with pale gray pollen. Hairs and bristles on thorax black. Six strong dc, seven to eight irregularly paired acr short and hair-like; scutellum with two pairs of bristles (basal pair short and hair-like, apical pair long and strong) and some pale short marginal hairs. Propleuron black haired, with one black bristle at lower part. Legs black [hind tarsomeres 4–5 broken off]; femora black except apical 2/5 of fore femur and apical 1/3–1/4 of mid and hind femora yellow; fore tarsomeres 4–5 ( Figure 6B ) black and flattened, mid tarsus from apex of tarsomere 1 onward black, apex of hind tibia and hind tarsus black. Hairs and bristles black; mid and hind coxae each with one outer bristle; mid and hind femora each with one preapical bristle. Fore tibia with three ad, two pd and three pv, apically with two bristles; mid tibia with two ad, two pd and one pv, apically with four bristles; hind tibia with four ad, four pd and one apical d, apically with two bristles. Hind tarsomere 1 with one ad and two d. Relative lengths of tibia and five tarsomeres LI 1.7: 0.85: 0.45: 0.35: 0.2: 0.3; LII 2.35: 1.25: 0.55: 0.5: 0.25: 0.25; LIII 2.5: 1.35: 0.9: 0.65:?:?. Wing hyaline, veins black; costal callus short and thin; M without rudimentary M 2. CuAx ratio 0.6. Squama yellow with black hairs; halter pale yellow.

Abdomen metallic green with pale gray pollen. Hairs and bristles on abdomen black. Male genitalia ( Figures 6C–E ): Epandrium distinctly longer than wide; inner epandrial lobe rounded apically, outer epandrial lobe with one spine-like apical bristle; cercus with finger-like processes and marginal bristles; hypandrium acute apically.

Female. Body length 2.7–2.9 mm, wing length 2.5–2.7 mm. Similar to male except first flagellomere shorter, as long as wide, and fore tarsus normal, not flattened.

Measurements of male (mm). Body length 3.4 mm, wing length 3.7 mm.

Remarks

The redescription is mostly consistent with the original description except the first flagellomere and bristles on tibiae.

Distribution

China (Qinghai), Middle Asia, Mongolia.

Figures

Figure 6. Dolichopus (Dolichopus) turanicus Stackelberg. (A) antenna; (B) fore tarsomeres 3– 5; (C) male genitalia (lateral view); (D) cercus; (E) subepandrial lobes and postgonite.