Abstract
A list of social wasps occuring in the Bastak Nature Reserve (Middle Amur, Jewish Autonomous Region, Russia) is given, with 4 species of Polistes, 6 species of Vespa, 4 species of Vespula and 2 species of Dolichovespula. Vespa mandarinia and V. analis are reported from their north-western limits of range, two other (Vespula koreensis and Dolichovespula media) are firstly recorded in the Jewish Autonomous Region. Lesser Khingan mountains situated in the western part of Jewish Autonomous Region and the eastern part of Amur Province, are considered to be a serious barrier for several social wasp species (Vespa mandarinia, Vespa analis, Vespa ducalis, Vespula shidai) to disperse into west.
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