Sergentia Kieffer, 1922

Chamutiová, Tímea, Hamerlík, Ladislav & Bitušík, Peter, 2020, Subfossil chironomids (Diptera, Chironomidae) of lakes in the Tatra Mountains an illustrated guide, Zootaxa 4819 (2), pp. 216-264 : 254

publication ID

https://doi.org/ 10.11646/zootaxa.4819.2.2

publication LSID

lsid:zoobank.org:pub:2459A542-6CF2-4545-9E6F-262C68838D99

DOI

https://doi.org/10.5281/zenodo.4437369

persistent identifier

https://treatment.plazi.org/id/03F487F1-FF9B-FF82-FF22-FC52AD74FA26

treatment provided by

Plazi

scientific name

Sergentia Kieffer
status

 

Sergentia Kieffer View in CoL View at ENA ( Fig. 91 View FIGURES 91–92 )

Head capsule large, yellow. Antenna 5-segmented, premandible with 2–4 teeth. All mandibular teeth dull brown. One relatively short dorsal tooth and 4 inner teeth present. Mentum with 4 large, separated, equally broad and slightly elevated median teeth, central pair slightly lower than outer one, and with 6 pairs lateral teeth. Ventromental plates as wide as mentum, moderately curved and continuously striated, in S. coracina - type, however, with obvious paired striations along anterior margin.

Remarks: Sergentia is closely related to Phaenopsectra and the shape of mentum appearing as separated in three sections resembles some other genera (see remarks to Phaenopsectra ). Sergentia may be recognized by the usual 4 inner mandibular teeth, 4 subequal median mental teeth, not reduced outermost lateral teeth, and paired striations conspicuous along anterior margin in S. coracina - type.

One species, Sergentia coracina (Zetterstedt, 1850) , is documented from a few of the Tatra Mts. lakes, all situ-ated in sub-alpine zone ( Bitušík 2004).

The morphotype recognised was found in one lake only.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

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