Tanytarsini (Diptera: Chironomidae) of the Kashubian Lakeland

Abstract

Chironomids of the tribe Tanytarsini of the Kashubian Lakeland (N Poland) are represented by 52 species, amounting over half of the Polish and almost third part of the European fauna. Most abundant species in the studied region are Cladotanytarsus mancus (Walker) and C. atridorsum Kieffer and the most frequent-C. mancus and Paratanytarsus inopertus (Walker). Adult Tanytarsini fly from the beginning of April to the second decade of October, reaching four peaks with a higher number of species during a season-spring, late spring, summer and late summer, with a maximum at the end of July. Most of species are recognized as poly-or bivoltine and three species as univoltine. Cladotanytarsus teres Hirvenoja, Micropsectra logani (Johannsen), Parapsectra styriaca (Reiss), Stempellinella flavidula (Edwards), Tanytarsus aberrans Lindeberg, T. multipunctatus Brundin and Thienemanniola ploenensis Kieffer, recorded in the Lakeland, are annotated as rare in Poland and Central Europe. Tanytarsus mancospinosus Ekrem & Reiss and T. nigricollis Goetghebuer are new in the Polish fauna.