Stenochironomus Kieffer 1919
Creators: name: Lin, Xiao-Long
name: Yao, Yuan
name: Yan, Chun-Cai
name: Liu, Wen-Bin
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Stenochironomus

description: Key to adult males of Stenochironomus from China
(adapted from Qi et al. 2015)
1 Inferior volsella with a well-developed terminal spine........................................................ 2
- Inferior volsella without a well-developed terminal spine..................................................... 9
2 Wing membranes with dark pigmentation.................................................................. 3
- Wing membranes without any pigmentation................................................................ 4
3 Legs almost entire brown; wing with dark pigment restricted to a part area....................................... 4
- Legs yellow; entire wing smoky gray............................................... S. maculatus Borkent, 1984
4 Wing with dark band between veins C and M pale...................................... S. gibbus (Fabricius, 1805)
- Wing with two dark spots surrounding the RM and FCu................... S. xianjuensis Zhang, Gu, Qi & Wang, 2016
5 Apex of anal point swollen and rounded................................................................... 6
- Apex of anal point not swollen and rounded................................................................ 8
6 Superior volsella with 9–12 setae; posterior margin of tergite IX with 10–14 setae and 4–8 spines..................... 7
- Superior volsella with 4 setae; posterior margin of tergite IX with 14–16 setae............... S. koreanus Borkent, 1984
7 Superior volsella much beyond posterior margin of tergite IX; anal lobe reduced............. S. zhengi Lin & Liu sp. nov.
- Superior volsella small, finger-like; anal lobe developed...................... S. linanensis Qi, Lin, Liu & Wang, 2015
8 Posterior edge of tergite IX with 8 long setae and 6 spines; anal point parallelsided........... S. macateei (Malloch, 1915)
- Posterior edge of tergite IX with 14 long setae, without any spine; anal point roughly triangular, apically pointed................................................................................ S. mucronatus Qi, Shi & Wang, 2008
9 Wing membranes with dark pigmentation................................................................. 10
- Wings without any pigmentation or with narrow pigment areas around RM and along veins M 3+4 and Cu 1 .............. 12
10 Abdomen and hypopygium light yellow................................................ S. inalemeus Sasa, 2001
- Abdominal tergites I-IV light yellow, tergites V-VIII light brown, hypopygium dark brown......................... 11
11 Preepisternum with brown spots; anal point apically rounded......................... S. nubilipennis Yamamoto, 1981
- Preepisternum without any pigmentation; anal point apically pointed.............. S. satorui (Tokunaga & Kuroda, 1936)
12 Posterior margin of tergite IX with spines................................. S. brevissimus Qi, Lin, Liu & Wang, 2015
- Posterior margin of tergite IX without spines.............................................................. 13
13 Entire body yellow, without dark pigmentation; inferior volsella with 3 long setae...... S. hainanus Qi, Shi & Wang, 2008
- Body yellow, with brown spots on thorax, abdomen, hypopygium and legs; inferior volsella with 6 long setae.......................................................................................... S. totifuscus Sublette, 1960
description: Published as part of Lin, Xiao-Long, Yao, Yuan, Yan, Chun-Cai & Liu, Wen-Bin, 2021, Stenochironomus zhengi sp. nov. from Dawei Mountain National Park, Yunnan China (Diptera: Chironomidae), pp. 385-390 in Zootaxa 4970 (2) on pages 388-389, DOI: 10.11646/zootaxa.4970.2.10, http://zenodo.org/record/4761672