Range: C and E Europe, temperate Asia eastwards to Mongolia.
Distribution in Bulgaria: Very local in NE Bulgaria at 200-300 m a.s.l., there is also material from the S Black Sea coast but it is in need of confirmation (Abadjiev & Beshkov 2003).
Habitat: Bushy, often humid woodland fringes and glades.
Bionomics: One generation from late May till early July. The larvae before hibernation feed on Populus tremula and Fraxinus excelsior, in the spring also on Plantago lanceolata, Lonicera periclymenum and Veronica chamaedrys (Tolman & Lewington 1997).
Conservation status: Conservation status: The status of this very local and relatively rare species in Bulgaria needs dedicated research. IUCN category: Data Deficient. Listed in Appendix II of the Bern Convention (CITES) and The Red Data Book of European Butterflies as Vulnerable. Its inclusion into the Red Data Book of Bulgaria is herewith recommended.