Eriogaster lanestris (Linné, 1758):
E.Siberia, W.Buryatia, Irkut river valley, Zun-Murino,
ex larva (Larva: 1977 on Betula, Imago: 24-V-1979) (coll. SIFIBR)
The forewing length is 15 mm.
det. E.Berlov