Vol. 78 2026

ARTICLES

First Record of the Genus Georthocladius Strenzke, 1941 (Diptera: Chironomidae: Orthocladiinae) from Bulgaria, with Additional new Chironomid Records

Adam Janto1,*, Vesela Evtimova2, Ladislav Hamerlík3,4

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*,1Department of Biology and General Ecology, Faculty of Ecology and Environmental Sciences, Technical University in Zvolen, Zvolen, Slovakia; adamjanto@gmail.com
2Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Science, Sofia 1000, Bulgaria; vesela.vasileva.evtimova@gmail.com
3Department of Biology and Environmental Studies, Faculty of Natural Sciences, Matej Bel University, Banská Bystrica, Slovakia; ladislav.hamerlik@gmail.com
4Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia

https://doi.org/10.71424/azb78.4.003130

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Abstract

Georthocladius Strenzke, 1941 (Diptera: Chironomidae) was identified for the first time from Bulgaria. Larvae of G. cf. luteicornis (Goetghebuer, 1941) were found in the littoral zone of four high-altitude lakes in the Rila and Pirin Mountains. In addition, we recorded Heterotrissocladius marcidus (Walker, 1856) and Corynoneura cf. lobata Edwards, 1924, which represent new records for the Bulgarian fauna. The first national record of the genus, along with the taxonomic composition of the associated chironomid assemblages, indicate that Bulgarian high-altitude lakes support highly diverse chironomid communities and that these ecosystems may harbour additional taxa that have not yet been documented in the Bulgarian invertebrate fauna.

Key words

faunistics, high-altitude lakes, non-biting midges, Pirin Mountains, Rila Mountains

How to Cite
Janto A., Evtimova V., Hamerlík L. 2026. First Record of the Genus Georthocladius Strenzke, 1941 (Diptera: Chironomidae: Orthocladiinae) from Bulgaria, with Additional new Chironomid Records. Acta zoologica bulgarica 78.

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