Key to species (males) of Asyndetus Loew from Central Asia

1. Abdominal sternum 5 with many long black bristles; cercus with 2 long apical bristles ....................................................................................................................................... 2

­ Abdominal sternum 5 without long black bristles; cercus without long apical bristle 3

2. Fore tibia longer than fore tarsus; fore and mid tibiae yellow; mid femur with 2 rows of v. China (Xinjiang) ....................................................... Asyndetus wusuensis sp. nov.

­ Fore tibia shorter than fore tarsus; fore and mid tibiae metallic green with yellow apex; mid femur just have one row of av. Tajikistan ........ Asyndetus barbiventris Stackelberg

3. First flagellomere about 2.0 times longer than wide..................................................... 4

­ First flagellomere as long as wide or wider than long .................................................. 5

4. Legs chiefly yellow; hind femur with 2 ad and 4–6 pd. Mongolia ................................. ..................................................................................... Asyndetus longicornis Negrobov

­ Legs chiefly dark brown; hind femur without distinct d. China (Xinjiang).................... ..................................................................................... Asyndetus xinjiangensis sp. nov.

5. Acr present; fore tibia with ad; hind femur with long v; mid tarsus without claw(s) ... 6

­ Acr absent; fore tibia without distinct ad; hind femur without distinct v; mid tarsus with claws. Mongolia ............................................................. Asyndetus izius Negrobov

6. First flagellomere with acute apex; fore and mid femora each with 2 rows of v; hind

femur with 2 rows of long v on whole length. China (Xinjiang) .. Asyndetus lii sp. nov. ­ First flagellomere with obtuse apex; fore and mid femora each without distinct v; hind femur just with long v on apical half. Mongolia, Turkestan & Uzbekistan .................... ............................................................................................. Asyndetus albipalpus Loew