Last modified: April 23, 2019, 12:44 p.m.
A very rare and local species throughout Belgium, seems to be strongly declining in the south of the country.
Hibernates as a pupa in a sturdy cocoon among debris on the ground or in the soil, sometimes for more than one year. They are active from dusk onwards and come sparsely to light and sugar.
The adults fly from mid May till end of September in one generation.