Last modified: Sept. 13, 2023, 11:44 a.m.
A rather rare species in Belgium, more observed in the northwestern part of the country.
Native
Hibernates as a small larva, communally in a silk web on the food plant. Later, it pupates in a hairy cocoon, usually in a bark crevice or among foliage on the food plant.
The adults come to light. Occasionally found by day, resting on the underside of leaves.
The adults fly in one generation a year; from mid May towards mid August.