Nepalomyia

Zhang, Lili & Yang, Ding, 2005, Species of Nepalomyia (Diptera: Dolichopodidae) from Guangxi, China, with a key to Palaearctic and Oriental species, Zootaxa 1058, pp. 51-60 : 52-54

Key to species of Nepalomyia from the Palaearctic and Oriental Realms (males)

1 First flagellomere distinctly longer than wide............................. longa ­species group 2

­ First flagellomere wider than long (rarely as long as wide) ........................................... ........................................................................................... henanensis ­species group 8

2. First flagellomere 4.6 times longer than wide. Taiwan................................................... ............................................................................... Nepalomyia horvati Wang and Yang

­ First flagellomere at most 2.5 times longer than wide .................................................. 3

3. Hind tarsomere 1 shortened and thickened; hypandrium rather large and furcate apically .......................................................................................................................................4

­ Hind tarsomere 1 normal............................................................................................... 6

4 First flagellomere much elongated, 2.5 times longer than wide; basal spur on hind tar­ somere 1 furcate. Yunnan ................................ Nepalomyia furcata (Yang and Saigusa)

­ First flagellomere less than 2.0 times longer than wide; basal spur on hind tarsomere 1 normal..........................................................................................................................5

5. First flagellomere 1.6 times longer than wide ( Fig. 4 ). Guangxi.................................... ..................................................................................... Nepalomyia spiniformis sp. nov.

­ First flagellomere 1.3 times longer than wide. Yunnan................................................... ....................................................................... Nepalomyia crassata (Yang and Saigusa)

6. Hypandrium with shallow apical incision..................................................................... 7

­ Hypandrium with deep apical incision. Shaanxi Nepalomyia longa (Yang and Saigusa)

7. R2+3 and R4+5 swollen basally; hypandrium rather short. Taiwan..................................... ................................................................................. Nepalomyia siveci Wang and Yang

­ R2+3 and R4+5 normal basally; hypandrium rather long. Yunnan....................................... ......................................................................... Nepalomyia dentata (Yang and Saigusa)

8. First flagellomere as long as wide................................................................................. 9

­ First flagellomere wider than long .............................................................................. 10

9. 4 strong dc. Yunnan ...................................... Nepalomyia daliensis (Yang and Saigusa)

­ 5 strong dc. Nepal.............................................................. Nepalomyia confusa (Hollis)

10. R2+3 and R4+5 normal ..................................................................................................... 11

­ R2+3 and R4+5 distinctly thickened basally. Sichuan, Yunnan............................................ ..................................................................... Nepalomyia trifurcata (Yang and Saigusa)

11. Thoracic pleura brownish yellow to yellow except pteropleuron or upper portion dark ..................................................................................................................................... 12

­ Thoracic pleura wholly metallic green........................................................................ 18

12. 5 strong dc; thoracic pleura brownish yellow to yellow, except pteropleuron dark.... 13

­ 6 strong dc; thoracic pleura brownish yellow to yellow, except upper portion dark .. 17

13. Antennal scape and pedicel yellow ............................................................................. 14

­ Antenna entirely black ................................................................................................ 15

14. Halter brown with yellow base; hypandrium short and broad, with conical apex. Yunnan ............................................................................. Nepalomyia flava (Yang and Saigusa)

­ Halter yellow; hypandrium with 2 acute denticles. Guizhou.......................................... ...................................................................... Nepalomyia bidentata (Yang and Saigusa)

15. Acr absent. Yunnan .................................... Nepalomyia pingbiana (Yang and Saigusa)

­ Acr irregularly paired .................................................................................................. 16

16. Hypandrium symmetrical with a deep apical incision; cercus with a weak basal tuber­ cle. Taiwan..................................................... Nepalomyia taiwanensis Wang and Yang

­ Hypandrium asymmetrical with a shallow apical incision; cercus with a distinct basal tubercle. Yunnan ..................................... Nepalomyia luteipleurata (Yang and Saigusa)

17. Cercus with basal tubercle. Shaanxi ......... Nepalomyia tuberculosa (Yang and Saigusa)

­ Cercus without basal tubercle. Beijing .......... Nepalomyia beijingensis Wang and Yang

18. 5 strong dc ................................................................................................................... 19

­ 6 strong dc .................................................................................................................. 25

19. Fore tarsus partly white .............................................................................................. 20

­ Fore tarsus brown to dark brown................................................................................. 21

20. Fore tarsomere 5 white; halter dark brown with yellow base. Sichuan .......................... ........................................................................ Nepalomyia pallipes (Yang and Saigusa)

­ Fore tarsus with tip of tarsomere 3 and entire tarsomere 4 white ................................... ................................................................................... Nepalomyia guangxiensis sp. nov.

21. Cercus sclerotized apically, without hairs. Nepal................... Nepalomyia dytei (Hollis)

­ Cercus not sclerotized apically, with sparse hairs ....................................................... 22

22. Hypandrium trifurcate apically; cercus without distinct basal tubercle, but with short sparse hairs .................................................................................................................. 23

­ Hypandrium not furcate apically;cercus with basal tubercle bearing short hairs and2 very long bristles. Sichuan ................................... Nepalomyia longiseta (Yang and Saigusa)

23. First flagellomere 0.6 times as long as wide; hypandrium with marginal denticles, middle lobe short with furcate tip in ventral view. Yunnan ............................................ .................................................................... Nepalomyia pallipilosa (Yang and Saigusa)

­ First flagellomere nearly as long as wide; hypandrium without marginal denticles, middle lobe long and broad in ventral view............................................................................ 24

24. First flagellomere with weak lower apical corner; fore tarsomeres 1–3 with one row of long posterior hairs. Indonesia...... Nepalomyia baliensis Yang, Saigusa and Masunaga

­ First flagellomere with distinct lower apical corner; fore tarsus without row of long posterior hairs. Yunnan ....................................... Nepalomyia ruiliensis Wang and Yang

25. First flagellomere with weak lower apical angle ........................................................ 26

­ First flagellomere with distinct lower apical angle .................................................... 33

26. Hind tibia with 2 or 3 ad ............................................................................................. 27

­ Hind tibia with 1 ad ..................................................................................................... 31

27. Hind tibia with 3 pd ..................................................................................................... 28

­ Hind tibia with 2 pd ..................................................................................................... 30

28. Cercus without basal tubercle. Henan ..... Nepalomyia henanensis (Yang, Yang and Li)

­ Cercus with basal tubercle........................................................................................... 29

29. First flagellomere 0.9 times as long as wide ( Fig. 9 ); cercus with short basal portion ( Fig. 10 ) Guangxi ....................................................... Nepalomyia tianlinensis sp. nov.

­ First flagellomere 0.7 times as long as wide; geniculate cercus with long basal portion. Guizhou, Zhejiang ............................................................ Nepalomyia chinensis (Yang)

30. Cercus with long geniculate basal process. Shaanxi, Yunnan......................................... ................................................................ Nepalomyia zhouzhiensis (Yang and Saigusa)

­ Cercus without distinct basal process. Nepal.................................................................. .......................................................... Nepalomyia nigra (Yang, Saigusa and Masunaga)

31. Hypandrium symmetrical; cercus with basal tubercle bearing dense long hairs. Yunnan ......................................................................... Nepalomyia pilifera (Yang and Saigusa)

­ Hypandrium asymmetrical; cercus with basal tubercle bearing sparse short hairs. Yunnan ..................................................................................................................................... 32

32. Hypandrium rather long. Russia................................. Nepalomyia tatianae (Negrobov)

­ Hypandrium rather short. Yunnan ........... Nepalomyia yunnanensis (Yang and Saigusa)

33. Halter yellow; hypandrium with V­shaped apical incision ......................................... 34

­ Halterdarkbrownwith yellowbase;hypandrium with small,quadrateapicalincision.Yun ­nan........................................................... Nepalomyia daweishana (Yang and Saigusa)

34. Cercus basally with rather long tubercle bearing long pale hairs. Nepal........................ ................................................. Nepalomyia nepalensis (Yang, Saigusa and Masunaga)

­ Cercus with short tubercle bearing short hairs. Shaanxi ................................................. ................................................................. Nepalomyia brevifurcata (Yang and Saigusa)

Figures

FIGURES 4 – 7. Nepalomyia spiniformis sp. nov. (male). 4. Antenna; 5. hind tarsomeres 1 – 2, inner lateral view; 6. genitalia, left lateral view; 7. hypandrium, ventral view. Ce—Cercus, Sdl—Surstylar dorsal lobe, Svl—Surstylar ventral lobe, Pg—Postgonite, Aed—Aedeagus, Hyp—Hypandrium, El—Epandrial lobe.

FIGURES 8 – 11. Nepalomyia tianliensis sp. nov. (male). 8. Wing; 9. antenna; 10. genitalia, dorsal view; 11. hypandrium, ventral view. Ce—Cercus, Sdl—Surstylar dorsal lobe, Svl—Surstylar ventral lobe, Aed—Aedeagus, Hyp—Hypandrium, El—Epandrial lobe.