New data on the distribution and ecologycal features of less studied wasp Eumenes transbaicalicus Kurzenko, 1984 (Hymenoptera, Vespidae) in Transbaikalia and Mongolia

The article presents new data on distribution and new findings of less studied wasp E. transbaicalicus Kurzenko, 1984. For the first time it is found on the territory of Mongolia and also in the southern part of Buryatia the type locality of this species is reconfirmed. Nowadays the local spread of wasps is actually confirmed in cross-border areas of three neighboring states. The descriptions of relief, landscape characteristics and vegetation habitats are submitted, where a correlation between the considered species and psammophyte phytocenoses is traced. Some brief data on the ecology of the species are also summarized.