NATURE OBSERVATIONS LIESJÄRVI
Dragonfly and butterfly observations near a summer cottage since 2003
Not as common as the lookalike B. selene (Niittyhopeatäplä)
Caterpiller overwinters and feeds on Viola (Orvokki). The black spot near the basis of the hind wing is small and had a yellow edge. Only one silvery spot in the middle of the hind wing.