Idaea serpentata (Hufnagel, 1767):

E.Siberia, Irkutsk, 7-VIII-1973, leg. E.Berlov The forewing length is 10 mm. det. E.Berlov

E.Siberia, lake Baikal, Nature Reserve «Baikalo-Lenskyi», cordon Onkholoi, 17-VII-2005, leg. O.Berlov The forewing length is 10 mm. det. E.Berlov

E.Siberia, lake Baikal, Nature Reserve «Baikalo-Lenskyi», cordon Pokoiniki, 23-VII-2005, leg. O.Berlov The forewing length is 10 mm. det. E.Berlov