Last modified: April 15, 2021, 2:04 p.m.
A rather rare species in Belgium, more observed in the northwestern part of the country.
The adults fly in one generation a year; from mid May towards mid August. They come to light. Occasionally found by day, resting on the underside of leaves.
The larva lives mainly on Populus spp. but sometimes also on Salix. 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.