M. Hirvenoja et P. Michailova, The karyotype and morphology of Chironomus brevidentatus sp. n. (Dipt., Chironomidae). A species with a "salinarius type" larva from northern Finland, ENTOMOL FEN, 9(4), 1998, pp. 225-236
The karyotype and morphology of Chironomus brevidentatus sp. n. has been de
scribed from the Lokka reservoir in northern Finland. The species belongs t
o the thummi complex with the chromosome arm combination AB, CD, EF and G.
The relationships between the karyotypes of C. brevidentatus, C. major Wulk
er & Butler, C. neocorax Wulker and Butler, C. tardus Butler, and "Chironom
us sp. 2n = 6, Lokka" are described. The external morphology has been compa
red with the suggested nearest relatives or otherwise similar species. The
known ecological conditions in the type locality are discussed.