Xenochironomus
Creators: name: Fusari, Lívia Maria
name: Roque, Fabio De Oliveira
name: Hamada, Neusa
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Xenochironomus

description: Key to the males of Xenochironomus
[The species X. lacertus, X. flaviventris and X. longicrus were not included in the key because there are no diagnostic characters in their original descriptions.]
1. Setae of anal tergite distributed in one area................................................................. 2
- Setae of anal tergite distributed in two areas................................................................. 6
2. Inferior volsella with plumose setae....................................................................... 3
- Inferior volsella with simple setae........................................................................ 5
3. Sternite VI with large dark setae.......................................................................... 4
- Sternite VI without large dark setae........................................... Xenochironomus xenolabis (Kieffer)
4. Sternite VI with 14 setae. Superior volsella with microtrichia only in the inner region.................................................................................................. Xenochironomus trochanteratus (Thompson)
- Sternite VI with 4 setae. Superior volsella completely covered by microtrichia............ Xenochironomus tuberosus Wang
5. Superior volsella exposed (visible)............................................ Xenochironomus amazonensis sp. n.
- Superior volsella unexposed (located inside tergite IX)........................ Xenochironomus ugandae (Goetghebuer)
6. Setae in the latero-posterior region of tergite IX present............................... Xenochironomus alaidae sp. n.
- Setae in the latero-posterior region of tergite IX absent........................................................ 7
7. Anal point long; apex of the anal point surpassing or just reaching the inferior volsella...... Xenochironomus mendesi sp. n.
- Anal point short; apex of the anal point not surpassing or reaching the inferior volsella............................... 8
8. Inferior volsella wide; superior volsella long and curved ventrally.................... Xenochironomus ethiopensis sp. n.
- Inferior volsella narrow; superior volsella short and straight.................................................... 9
9. Superior volsella fingerlike; inferior volsella with 2–3 setae at the apex............... Xenochironomus trisetosus (Kieffer)
- Superior volsella pediform; inferior volsella with>3 setae at the apex........................................... 10
10. Gonocoxite with setae as long as the gonostylus; gonostyus rounded........................ Xenochironomus grini sp. n.
- Gonocoxite with setae shorter than the gonostylus; gonostylus narrow apically................................... 11
11. Apex of the inferior volsella rounded............................................................................................. Xenochironomus ceciliae Roque et Trivinho-Strixino, Xenochironomus canterburyensis (Freeman)
- Apex of the inferior volsella spatulate............................................. Xenochironomus martini sp. n.
description: Published as part of Fusari, Lívia Maria, Roque, Fabio De Oliveira & Hamada, Neusa, 2013, Review of Xenochironomus Kieffer, 1921 (Diptera: Chironomidae) with description of six new species, pp. 101-126 in Zootaxa 3646 (2) on page 123, DOI: 10.11646/zootaxa.3646.2.1, http://zenodo.org/record/219502