Last modified: Dec. 5, 2024, 3:21 p.m.
A very rare and very local species in Belgium. Extinct in Flanders around 1949 and nowadays only occurring in the south of Belgium. Endangered.
Native
Hibernates as a half-grown larva.
The adults fly from early May till late June with a peak onwards from 10 May till 10 June. During hot summers a partial second generation may occurs in July.
The larva lives on several species of Viola.