Last modified: April 15, 2021, 2:17 p.m.
A very rare and local species in Belgium, hitherto only known from the Kempen.
The adults fly in one generation a year; from early July till early September. The males are active during daytime and later come to light. The females are wingless.
The larva lives on Erica, Calluna, Salix, Vaccinium uliginosum, and Myrica. Hibernates as an egg, in a batch on the inside of the empty cocoon of the female, attached to twigs on the food plant.