Last modified: Feb. 22, 2020, 3:10 p.m.
Used to be a fairly common species throughout Belgium, but nowadays rather rare. Usually seen in low numbers or as singletons and most observations are from the Kempen and the southern part of the country.
The eggs are dropped in flight and overwinter with the caterpillar fully formed inside the shell. The adults are active during the day and at night. They come to light and sugar.
The adults fly from late June till early October in one generation a year.