not so common species throughout Belgium.
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.
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
Ardèche, Cévennes, 21 June 2007.
(Photo © Chris Steeman)