Tipula (Sivatipula)

Men, Qiulei, 2020, Three new species of the subgenus Tipula (Sivatipula) from Yunnan and Tibet, China (Diptera: Tipulidae), with an updated key for Chinese species, Zoological Systematics 45 (1), pp. 59-68 : 60

Key to species of Tipula (Sivatipula) from China.

1. Outer gonostylus long-attenuate, spiniferous flange present, broad based (see Alexnader, 1940: 110, fig. 11; Li et al., 2016: 31, fig. 1–24) (Zhejiang) ........................................................................................................................ T. (S.) suensoniana Alexnader, 1940

Outer gonostylus not long-attenuate, spiniferous flange absent ...........................................................................................................2

2. Mesal margin of the outer gonostylus microscopically serrulate, near the base bearing a slender arm (see Alexander, 1928: 458, pl. II, fig. 5) (Taiwan) ............................................................................................................... T. (S.) lackschewitziana Alexander, 1928

Outer gonostylus not as above .............................................................................................................................................................3

3. Hypopygium yellow or orange-yellow................................................................................................................................................. 5

Hypopygium brownish-black or black .................................................................................................................................................4

4. Mesal margin of outer gonostylus with abundant black teeth (see Yang et al., 2019: 195, fig. 5) (Tibet) .............................................. ...................................................................................................................................... T. (S.) yiyongensis Yang, Pan & Yang, 2019

Outer gonostylus without teeth ............................................................................................................................................................ 6

5. Semen pump with posterior immovable apodeme not curved dorsally ................................................................................................ 7

Semen pump with posterior immovable apodeme curved dorsally ......................................................................................................8

6. Prescutum brown; sternite nine with one horn-shaped process (Tibet) ............................................... T. (S.) pseudofilicornis sp. nov.

Prescutum brownish-yellow; sternite nine with a pair of finger-shaped processes (Yunnan).......................... T. (S.) podenasi sp. nov.

7. Tergite nine truncated at posterior margin; outer gonostylus enlarged at apex (see Men et al., 2018: 199, figs 19, 21) (Chongqing) ... .......................................................................................................................................................... T. (S.) tergatruncata Men, 2018

Tergite nine shallowlly emarginated at posterior margin; outer gonostylus not enlarged apically (see Men et al., 2018: 196, figs 7–8) (Guizhou) ............................................................................................................................................. T. (S.) multidentata Men, 2018

8. Tergite nine terminating in two broad lobes, which are densely covered with black teeth at the apex (see Men et al., 2016: 806, figs 6, 8, 10) (Yunnan) ......................................................................................................................... T. (S.) tongbiguanensis Men, 2016

Tergite nine not terminating in two lobes.............................................................................................................................................9

9. Tergite nine with finger-shaped or horn-shaped process at posterior margin ..................................................................................... 10

Tergite nine without such process at posterior margin (see Alexander, 1941:401, pl. 4, fig. 44; Xue & Men, 2016: 35, fig. 7) (Fujian, Guangxi, Guizhou)..................................................................................................................... T. (S.) parvauricula Alexander, 1941

10. Tergite nine with a pair of finger-shaped processes which are close to each other............................................................................. 11

Tergite nine with a pair of finger shaped processes which are not close to each other (Yunnan) .............. T. (S.) pianmaensis sp. nov.

11. Outer gonostylus curved squarely at apical third, its inner surface densely covered with many black teeth (see Men et al., 2016: 809, fig. 25) (Guangxi) .......................................................................................................................................... T. (S.) similis Men, 2016

Outer gonostylus not curved squarely, its inner surface without tooth (see Xue & Men, 2016: 37, fig. 20) (Guangxi) ......................... ................................................................................................................................................... T. (S.) biprocessa Xue & Men, 2016