Tishechkin D.Yu. 2010. Vibrational signals in sympatric species of leafhoppers: Paralimnini (Homoptera: Cicadellidae: Deltocephalinae) in the valley of Irkut River, Eastern Siberia — a case study // Russian Entomol. J. Vol.18 (for 2009). No.4: 265–272 [in English].

Department of Entomology, Faculty of Biology, M.V. Lomonosov Moscow State University, Vorobyevy Gory, Moscow 119991, Russia. E-mail: macropsis@yandex.ru

KEY WORDS: leafhoppers, Cicadellidae, Paralimnini, vibrational signals, communication channels, acoustic niches, habitat preferences.

ABSTRACT. Comparative investigation of vibrational calling signals of leafhoppers of the tribe Paralimnini (Homoptera: Cicadellidae: Deltocephalinae) inhabiting the meadow and adjacent biotopes in the valley of Irkut River (Buryatia, Eastern Siberia) showed that the signal temporal pattern quite often is almost identical in different species. In all cases the forms producing similar signals were spatially isolated. It is supposed that these are differences in habitat preferences, which provide segregation of acoustic communication channels in such species.

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