Two new chironomid species (Diptera,Chironomidae) from Wrangel Island |
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Authors: | E. A. Makarchenko M. A. Makarchenko |
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Affiliation: | 1. Institute of Biology and Soil Sciences, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia
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Abstract: | Two new species from Wrangel Island, Orthocladius (Eudactylocladius) tschernovi sp. n. and O. (E.) ushakovskiensis sp. n. (Orthocladiinae), are described and illustrated from on the male adults. Orthocladius (E.) tschernovi sp. n. is closely related to O. (E.) fuscimanus (Kieffer) and O. (E.) musester Sæther, but can be distinguished from both by an almost straight transverse sternapodema, a rounded triangular superior volsella, and a long phallapodema, as well as by the presence of a subapical crista dorsalis of the gonostylus and by the shape of the anal point. Orthocladius (E.) ushakovskiensis sp. n. differs from all the known species of the subgenus in the absence of superior and inferior volsellae and in the shape of both short gonostylus and the short and wide anal point. |
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