Synorthocladius

Liu, Yuedan & Wang, Xinhua, 2005, Synorthocladius Thienemann from China, with a review of the genus (Diptera: Chironomidae: Orthocladiinae), Zootaxa 1057, pp. 51-60 : 58

publication ID	https://doi.org/10.5281/zenodo.170112
DOI	https://doi.org/10.5281/zenodo.5618086
persistent identifier	https://treatment.plazi.org/id/D6699904-FFD9-FF96-A121-FBBFFA81F8C0
treatment provided by	Plazi (2016-04-04 06:22:29, last updated 2024-11-27 08:28:30)
scientific name	Synorthocladius
status

Treatment

Key to males of the genus Synorthocladius View in CoL View at ENA of the world*

1. Acrostichals absent; antepronotum without lateral setae .............................................. 2

– Acrostichals hooked; antepronotum with lateral setae.................................................. 3

2. Anal point narrow and with pointed apex, with 34 setae at base; inferior volsella finger shaped. ( Mongolia) ............................................ S. mongolwexeus View in CoL (Sasa & Suzuki)

– Apex of anal point rounded, with 6 setae at base; inferior volsella broader and rectangular. ( Japan) ................................................................................. S. tamaparvulus View in CoL Sasa

3. Pseudospurs present on tarsomeres I and II of middle and hind legs; anal point nearly equilateral triangular; inferior volsella broader; Cu1 nearly straight. ( Japan) ................ ........................................................................... S View in CoL . asamasecundus Sasa & Hirabayashi

– Pseudospurs absent; anal point narrow and apically pointed; inferior volsella narrower; Cu1 slightly curved and end of Cu1 slightly recurved ........................................ 4

4. Tentorium not bifurcate, with small mediolateral tubercle; inferior volsella bent and apically triangular; scutal stripes light brown. (Europe, Asia, and North America)....... ..................................................................................................... S. semivirens (Kieffer) View in CoL

– Tentorium bifurcate; inferior volsella apically rounded, finger shaped; scutal stripes dark brown. (Oriental China) .................................................................. S. bifidus View in CoL sp. n.