Polypedilum (Cerobregma)
Creators: name: Lin, Xiao-Long
name: Yu, Hai-Jun
name: Zhang, Rui-Lei
name: Wang, Xin-Hua
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Polypedilum

description: Key to known adult males of the Polypedilum (Cerobregma)
modified from Saether and Sundal (1999) and Zhang and Wang (2005)
1. Wing with distinct spots................................................................................ 2
- Wing without distinct spots.............................................................................. 6
2. Palpomeres reduced, palpomeres 4 and 5 combined about as long as palpomere 3; Sudan ..... P. brevipalpe Saether et Sundal
- Palpomeres normal, palpomere 5 about twice as long as palpomere 3............................................. 3
3. Antepronotum setose................................................................................... 4
- Antepronotum bare.................................................................................... 5
4 Superior volsella with two outer setae; France .......................................... P. lotensis Moubayed-Breil
- Superior volsella without outer seta; Ghana, Tanzania ................................. P. volselligum Saether et Sundal
5 Wing with several spots; setae along inner margin of gonostylus strongly split; South of Sahara........ P. ramiferum Kieffer
- Wing with a large black spot on the entire basal half area of wing; setae along inner margin of gonostylus not split; Oriental China ................................................................................... P. heberti sp. n.
6 Antepronotum setose................................................................................... 7
- Antepronotum without seta............................................................................. 10
7 Anal point broad, tapering towards apex; Canada and USA ....................................... P. ontario (Wally)
- Anal point narrow, parallel-sided......................................................................... 8
8 Apical process of superior volsella with strong outer seta in apical half........................................... 9
- Apical process of superior volsella without strong outer seta in apical half........................... P. okigrandis Sasa
9 Fore tibial scale pointed; tergite IX with strongly sclerotized circle; China ...................... P. cyclus Zhang et Wang
- Fore tibial scale rounded; tergite IX without strongly sclerotized circle; China and Japan ........ P. yamasinense (Tokunaga)
10 Scutum with weak tubercle............................................................................. 11
- Scutum without tubercle............................................................................... 12
11 Superior volsella with one long outer seta; R 2+3 distinct; China .................................. P. jii Zhang et Wang
- Superior volsella without outer seta; R 2+3 evanescent; China ......................... P. exilicaudatum Saether et Sundal
12 Anal point broad, not parallel-sided; legs ringed with white................................................... 13
- Anal point narrow, parallel-sided; legs not ringed........................................................... 14
13 Anal point broad with strong median swelling and apical additional point; Ghana ....... P. bulbocaudatum Saether et Sundal
- Anal point awl-shaped without additional apical point; Ghana .......................... P. subulatum Saether et Sundal
14 AR 0.54–0.91; tergite IX with two setae; superior voslella low and broad; China .................... P. paucisetum Zhang
- AR 1.15; tergite IX with more than 40 setae; superior volsella curved and tapered; France ....... P. saetheri Moubayed-Breil
description: Published as part of Lin, Xiao-Long, Yu, Hai-Jun, Zhang, Rui-Lei & Wang, Xin-Hua, 2019, Polypedilum (Cerobregma) heberti sp. n. (Diptera: Chironomidae) from Gaoligong Mountains, Yunnan, China, pp. 255-262 in Zootaxa 4571 (2) on page 261, DOI: 10.11646/zootaxa.4571.2.5, http://zenodo.org/record/2608306