Key to Chinese species of divisotergata group

Males

1. Tergite 9 without sclerotised processes on ventral side (Figs 21, 22)............. Tipula (Vestiplex) xinduqiaoensis sp. nov.

- Tergite 9 with pair of sclerotised processes on ventral side..................................................... 2

2. Tergite 9 ventrally with a pair of broadened, ear-shaped lobes (Figs 31, 32)..... Tipula (Vestiplex) auriculatalobata sp. nov.

- Tergite 9 with ventral plate not as above................................................................... 3

3. Femur with a subterminal yellow ring..................................................................... 4

- Femur without subterminal ring.......................................................................... 5

4. Flagellum with flagellomere bicolored; scape and pedicel yellow............................................... 6

- Flagellum entirely black; scape and pedicel reddish… Tipula (Vestiplex) nokonis Alexander, 1928

5. Femur with broadly blackened tip........................................................................ 7

- Femur with narrowly blackened tip................................... Tipula (Vestiplex) rongtoensis Alexander, 1963

6. Tergite 9 with ventral processes bilobed, foot-shaped. Prescutum golden-yellow, with three brown stripes............................................................................. Tipula (Vestiplex) divisotergata Alexander, 1932

- Tergite 9 with ventral processes narrowed. Prescutum light grey, with two intermediate darker grey stripes and increasingly brownish-grey laterally.............................................. Tipula (Vestiplex) zayulensis Alexander, 1963

7. Prescutum with three brownish-black stripes. Abdomen with three conspicuous dark brown stripes.................................................................................. Tipula (Vestiplex) subapterogyne Alexander, 1920

- Prescutum with four gray stripes. Abdomen with inconspicuous dorsal and lateral stripes............................ 8

8. Flagellum black. Prescutal stripes dark grey bordered by dark brown. Abdomen yellow.............................................................................................. Tipula (Vestiplex) adungensis Alexander, 1963

- Flagellum brown. Prescutal stripes gray, narrowly bordered by brown. Abdomen brownish-yellow...................................................................................... Tipula (Vestiplex) verecunda Alexander, 1924