Tipula divisotergata, Alexander, 1932

Starkevich, Pavel, Men, Qiu-Lei & Saldaitis, Aidas, 2019, Four new crane fly species of subgenus Tipula (Vestiplex) (Diptera, Tipulidae) from China, Zootaxa 4679 (1), pp. 69-86 : 77-78

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

Figures

FIGURES 20–27. Hypopygium of male Tipula (Vestiplex) xinduqiaoensis sp. nov. 20: hypopygium, lateral view; 21: hypopygium, dorsal view; 22: tergite 9, ventral view; 23: left outer gonostylus; 24: left inner gonostylus, lateral view; 25: hypopygium, ventral view; 26: sternite 9, ventral view, (tergite 9, outer and inner gonostylus removed); 27: sternite 9, ventral view. Abbreviations: adm, adminiculum; vl, ventral lobe of appendage of sternite 9; dl, dorsal lobe of appendage of sternite 9; dp, dorsal portion of tergite 9; gcx, gonocoxite; ig, inner gonostylus; og, outer gonostylus; st9, sternite 9; t9, tergite 9; vlt, ventral lobe of tergite 9.

FIGURES 30–36. Hypopygium of male Tipula (Vestiplex) auriculatalobata sp. nov. 30: hypopygium, lateral view; 31: hypopygium, dorsal view; 32: tergite 9, dorsal view; 33: left outer gonostylus; 34: left inner gonostylus, lateral view; 35: adminiculum, ventral view; 36: adminiculum and appendage of sternite 9, lateral view. Abbreviations: adm, adminiculum; vl, ventral lobe of appendage of sternite 9; dl, dorsal lobe of appendage of sternite 9; gcx, gonocoxite; ig, inner gonostylus; ms, median sclerite of adminiculum; og, outer gonostylus; tergite 9; vlt, ventral lobe of tergite 9.