Compterosmittia, Saether, 1981

Zhou, Xu-Shen, Fang, Da-Zhou, Gao, Rui, Wang, Ying, Yan, Chun-Cai & Liu, Wen-Bin, 2022, Compterosmittia wangi sp. nov. from Oriental China (Diptera, Chironomidae), Zootaxa 5209 (3), pp. 332-338 : 336-337

Updated key to known adult males of Compterosmittia in the world

[The key adapted from Lin et al. 2013 and follows the couplets 1–4 and 7–11.]

1 Anal lobe of wing well developed........................................................................ 2

- Anal lobe of wing reduced............................................................................. 3

2 Cu 1 strongly sinuous, inferior volsella moderately projected........................... C. togalimea (Sasa et Okazawa)

- Cu 1 moderately sinuous, inferior volsella strongly projected.............................. C. tuberculifera (Tokunaga)

3 Antenna with 10 or 12 flagellomeres..................................................................... 4 - Antenna with 13 flagellomeres.......................................................................... 5

4 Antenna with 10 flagellomeres, AR 0.97.................................. C. aberrans Mendes, Andersen et Saether

- Antenna with 12 flagellomeres, AR 0.35–0.39................................. C. duodecima Lin, Yan, Liu & Wang

5 Inferior volsella single-lobed, rounded, strongly projecting.................................................... 6

- Inferior volsella bilobed, anterior lobe digitiform bare, posterior lobe more or less roundish......................... 12

6 AR low 0.40........................................................... C. oyabelurida (Sasa, Kawai et Ueno)

- AR> 0.60........................................................................................... 7

7 Virga present........................................................................................ 8

- Virga absent........................................................................................ 10

8 Anal point nearly parallel-sided, virga only with single plate..................... C. tsujii (Sasa, Shimomura et Matsuo)

- Anal point triangle, virga obvious, with spines.............................................................. 9

9 Virga composed of 1 strong, medial spine............................................ C. lii Lin, Yan, Liu & Wang

- Virga composed of 16–18 spines.............................................................. C. virga Wang

10 Anal point well developed, with several strong lateral setae................................. C. pectinata (Freeman)

- Anal point short, with few and weak setae................................................................. 11

11 Supraalar seta absent, megaseta not dentate.................................. C. croizati Mendes, Andersen et Saether

- Supraalar setae present, megaseta dentate.................................................... C. nerius (Curran)

12 Megaseta dentate.................................................................................... 13

- Megaseta not dentate................................................................................. 14

13 Supraalar seta absent................................................................. C. dentispina (Saether)

- Supraalar setae present............................................................... C. wangi Liu sp. nov.

14 Anal point moderately long with blunt apex, supraalar seta(e) present............. C. pittieri Mendes, Andersen et Saether

- Anal point slender with pointed apex, supraalar seta absent................................................... 15

15 Antepronotum without seta, pseudospurs present.................................. C. procera Lin, Yan, Liu & Wang

- Antepronotum with several setae, pseudospurs absent........................... C. berui Mendes, Andersen et Saether