Hyptioxesta penthima (Erschoff, 1870): E.Siberia, lake Baikal, Nature Reserve "Baikalo-Lenskyi", Pass "Solntse-Pad" envir., tundra, 1400 m, 26-VI-2004, leg. O.Berlov The forewing length is 14,5 mm. det. V.Dubatolov