Nordmannia w-album (Knoch, 1782):

E.Siberia, Irkutsk, 25-VII-2010. Photo by O.Berlov det. O.Berlov

E.Siberia, Irkutsk, on flover of Sorbaria sorbifolia, 25-VII-2010, leg. O.Berlov The forewing length is 16 mm. det. O.Berlov

E.Siberia, Irkutsk, 23-VII-2000, leg. O.Berlov

This specimen from S.Russia is given for comparison: W.Caucasus, Krasnodarsky Krai, Sochi envir., near airport Adler, 30-VI-1976, leg. E.Berlov