Larval Morphology and Karyotype Structure of Chironomus sp. (Diptera, Chironomidae) from the Novaya Zemlya Archipelago (Russia)

详细

Larval morphology and karyotype characters of Chironomus sp. from Yuzhnyi Island of the Novaya Zemlya Archipelago (70°32'N, 55°10'E) are described. This species is close to Ch. tuvanicus described from Tuva (Siberia, Russia) and belongs to the riihimakiensis group. Its chromosome set is 2n = 6: AB, CD, FEG, with the latter chromosome produced by joining of the small chromosome G with arm E. The studied Chironomus sp. has an Arctic distribution and is a primitive member of the genus.