CYTOGENETIC CHARACTERISTICS OF STENOCHIRONOMUS GIBBUS (FABRICIUS, 1794)
(DIPTERA, CHIRONOMIDAE), AN OBLIGATE MINER OF SUBMERGED WOOD
N. A. Durnova
Saratov State Medical University;
e-mail: ndurnova@mail.ru
The karyotype of Stenochironomus gibbus F. (2n = 8) is described for the first time. Chromosomes:
I(AB) ≥ II(CD) ≥ II(EF) ≥ IV(G). Larvae of this species undermine submerged wood. Low degree of polyteny
and poor development of active regions is characteristic of this species polytene chromosome structure, which is
probably due to diminished function of salivary glands of the larvae that do not build web shelters.
Key words: karyotype, obligate miner, Stenochironomus gibbus
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