Hecatera bicolorata (Hufnagel, 1766): (= serena Denis et Schiffermüller, 1775) E.Siberia, Irkutsk province, Ust-Orda envir., Kharat, at light, 11-VI-2002, leg. E.Berlov The forewing length is 13 mm. det. S.Ohshima E.Siberia, Irkutsk province, Ust-Orda envir., Kharat, at light, 11-VI-2002, leg. E.Berlov The forewing length is 13 mm. det. S.Ohshima