Apamea monoglypha (Hufnagel, 1766): E.Siberia, Irkutsk, 1-VII-2011, leg. O.Berlov The forewing length is 23 mm. det. E.Berlov E.Siberia, Irkutsk, at UV-light, 2-VII-1973, leg. E.Berlov The forewing length is 21 mm. det. L.Lehmann This specimen from C.Russia is given for comparison: C.Russia, Moscow envir., airport Domodedovo, 13-VII-1972, leg. and det. E.Berlov The forewing length is 22 mm.