Abstract
An annotated list of 73 species from 50 genera and 7 families of orthopteran insects (Orthoptera) reliably noted for the Amurskaya oblast is given based on collection materials and literature data. Grasshoppers (Acrididae) and bush-crickets (Tettigoniidae) are best represented (38 and 19 species, respectively) while other families included of 1–7 species each. The Transpalaearctic (30%), Eastern-Palaearctic (30%) and Palaearchearctic (25%) species are dominated in the fauna of the Amurskaya oblast. Here lies the eastern boundary of the ranges of Transpalaearctic and Eastern-Palearctic species (Arcyptera fusca, Gomphocerippus rufus, Myrmeleotettix palpalis, and Psophus stridulus) and the northwestern boundary of 13 species known from the Pacific regions of East Asia (Atlanticus brunneri, Chizuella bonneti, Tettigonia uvarovi, Eobiana engelhardti, Ruspolia yezoensis, Shagniana ussuriana, Uvarovites inflatus, Oecanthus longicauda, Dianemobius csikii, Pteronemobius gorochovi, Xya japonica, Gryllotalpa orientalis, and Arcyptera orientalis).
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