Asyndetus xinjiangensis Wang et Yang

Wang, Mengqing & Yang, Ding, 2005, Xinjiang, with a key to Central Asian species, Zootaxa 892, pp. 1-8 : 6-8

Asyndetus xinjiangensis Wang et Yang , sp. nov.

( Figs. 7–8 )

Diagnosis. First flagellomere 1.7 times longer than wide and with acute apex. Each femur dark brown with brownish apex, fore and mid tibiae yellow, hind tibia yellow with brownish apex.

Description. Male. Body length 2.8 mm, wing length 2.6 mm.

Head metallic green with pale gray pollen, frons wide, shining metallic green, face wide, about 1.7 times wider than first flagellomere. Hairs and bristles black; ocellar tubercle distinct with 2 strong oc and 2 posterior hairs; lower postocular bristles (including postero­ventral hairs) pale. Antenna black ( Fig. 7 ); first flagellomere about 1.7 times longer Thorax dark metallic green with pale gray pollen. Hairs and bristles on thorax black; 5 strong dc, 6–7 paired acr short and hair­like; scutellum with 2 pairs of bristles (apical pair thick and long, basal pair rather short and hair­like). Propleuron with 1 black bristle on lower portion. Legs dark brown (mid and hind tarsomeres 3–5 broken); each femur with brownish apex, fore and mid tibiae yellow, hind tibia yellow with brownish apex; fore and mid tarsi brownish to dark brown from tip of tarsomere 1 onward. Hairs and bristles on legs black; fore coxa with 4 anterior and apical bristles; mid coxa with 3–4 anterior outer bristles; hind coxa with 1 outer bristle near base. Fore and mid femora each with 2 rows of 4–6 short v; hind femur with 2 rows of v on apical half. Fore tibia with 1 ad at middle and 1 pd, apically with 4 bristles; mid tibia with 2 ad and 2 pd, apically with 4 bristles; hind tibia with 4 ad, 3–4 pd, and 3–4 short v, apically with 4 bristles. Fore leg without claws; elongated pulvilli of fore leg about as long as tarsomere 5. Relative lengths of tibia and 5 tarsomeres LI 4.0: 2.1: 1.0: 0.7: 0.5: 0.5; LII 6.0: 1.7: 1.4:?:?:?; LIII 6.5: 1.5: 1.4:?:?:?.

Wing hyaline; veins brown, R4+5 and M divergent apically. CuAx ratio 0.11. Squama pale yellow with pale hairs. Halter pale yellow.

Abdomen dark metallic green with pale gray pollen. Hairs and bristles on abdomen black. Terga 1–5 with row of posterior bristles; sternum 8 with 4 strong bristles.

Male genitalia ( Fig. 8 ): Lateral lobe on epandrium thick, about as long as surstylus, with 2 spine­like apical bristles; surstylus with broad base and acute apex, with 1 apical bristle, and 1 long black bristle at middle; cercus brownish, somewhat concaved at middle, with brown bristles and some short hairs; aedeagus slender.

Female. Unknown.

Type material. Holotype male, XINJIANG: Kashi, 1335 m, 14. VI. 1959, A. Tian (CAU).

Etymology. The specific epithet refers to locality of the holotype Xinjiang. Comments. The new species is similar to Asyndetus albipalpus Loew from Mongolia, but may be separated from the latter by the first flagellomere longer than wide and with the acute apex. In A. albipalpus , the first flagellomere is wider than long and with the obtuse apex ( Negrobov, 1973).

Figures

FIGURES 7 – 8. Asyndetus xinjiangensis Wang et Yang, sp. nov. (male). 7. antenna (excluding scape), lateral view; 8. genitalia, lateral view.