Cladopelma Kieffer

Yan, Chuncai, Jin, Zhaohui & Wang, Xinhua, 2008, Cladopelma Kieffer from the Sino-Indian Region (Diptera: Chironomidae), Zootaxa 1916, pp. 44-56 : 45-46

Key to the males of Cladopelma Kieffer

1. Tergite IX with lateral lobes.........................................................................................................................2

- Tergite IX without lateral lobes....................................................................................................................3

2. Lateral lobe of tergite IX with setae apically; AR 2.0; LR1 1.25. Palaearctic, Sino-Indian ........................... .................................................................................................................... C. goetghebueri Spies et Saether

- Lateral lobe of tergite IX bare apically; AR 2.4; LR1 1.6. Nearctic ......................... C. spectabilis (Townes)

3. Tergite IX extended with a swelling covering parts or whole of base of anal point.................................... 4

- Tergite IX not extended over base of anal point...........................................................................................7

4. Anal point with large, bare carina basally. Palaearctic, Sino-Indian .................................... C. costum sp. n.

- Anal point without bare carina basally.........................................................................................................5

5. Swelling of tergite IX hood-like; anal point rounded apically. Nearctic ..................... C. galeator (Townes)

- Swelling not hood-like; anal point acute......................................................................................................6

6. Superior volsella large, thumb-like; AR 2.5. Palaearctic, Sino-Indian ............. C. krusemani (Goetghebuer)

- Superior volsella reduced to a tubercle; AR 2.0-2.1. Palaearctic .......................... C. bicarinatum (Brundin)

7. Margin of tergite IX extended as large shoulders on each side of the anal point.........................................8

- Margin of tergite IX not extended as large shoulders on each side of the anal point.................................10

8. Posterior half of tergite IX form shoulders. Nearctic ................................................... C. collator (Townes)

- Whole of tergite IX form shoulders..............................................................................................................9

9. Gonostylus with basal projection; mid leg with 1 spur. Neotropical, Nearctic ............ C. forcipes (Rempel)

- Gonostylus without basal projection; mid leg with 2 spurs. Holarctic, Sino-Indian...................................... ................................................................................................................................ C. edwardsi (Kruseman)

10. Posterior margin of tergite IX with pair of processes flanking base of anal point; anal tergite bands H- shaped. Palaearctic, Sino-Indian ................................................................................. C. virescens (Meigen)

- Posterior margin of tergite IX without processes flanking base of anal point; anal tergite bands not H- shaped.........................................................................................................................................................11

11. Base of anal point with high, knife-like ridge. Holarctic, Sino-Indian.................... C. viridulum (Linnaeus)

- Base of anal point without ridge.................................................................................................................12

12. Base of anal point slightly truncated; without ridge extending to tergite IX. Nearctic .................................. ............................................................................................................................... C. amachaerus (Townes)

- Base of anal point cone-shaped; with ridge extending to tergite IX...........................................................13

13. Anal point slightly constricted basally; gonostylus rounded apically. Afrotropical .. C. inflexum (Freeman)

- Anal point strongly constricted basally; gonostylus pointed apically........................................................14

14. Superior volsella slightly swollen mesally; AR 2.8–3.0; LR1 about 1.45. Palaearctic................................... ................................................................................................................................. C. subnigrum (Brundin)

- Superior volsella slightly constricted mesally; AR 2.0; LR1 1.8. Australasian .......... C. curtivalve (Kieffer)