Contribution to the Fauna of the Darkling Beetles (Coleoptera, Tenebrionidae) of Buryatia (Transbaikalia)

26 species of Tenebrionidae are recorded for Buryatia (Transbaikalia) based on the published data, collection of the Laboratory of Ecology and Animal Systematics, the Institute of General and Experimental Biology, the Siberian Branch of the Russian Academy of Sciences (LES AIOEB SB RAS, Ulan-Ude), collection of the Zoological Institute, Russian Academy of Sciences, St. Petersburg (ZIN), and material collected by the expeditions of the Institute of Geography, Siberian Branch of the Russian Academy of Sciences, Irkutsk, in the Western Transbaikalia in 2018 and 2019 aimed at investigation of the westernmost populations of Ulmus japonica .