Last modified: Oct. 6, 2023, 4:32 p.m.
A very rare and very local species in Belgium. Most observations are in the southern part of Belgium. A very tiny population occurs at the coast in Ostend (WV).
In some southern locations the species is not rare, especially in calcareous area's.
Native
Hibernates as a pupa in a cocoon among plant debris. Adults can be seen during the day, but are most active from dusk on and later come to light.
The adults fly from May till mid-July, in most years a partial second generation occurs from August till late September.