Last modified: March 4, 2021, 3:34 p.m.
A rather common species throughout Belgium.
The adults fly during the night and at dawn. They come to light and occasionally to sugar. During 2011 an individual was trapped on 28 March, the earliest record so far. Likely the pupa was lying in a warm sunny place and with the good spring weather it emerged a lot earlier than usual.
One generation a year: from June till late September, occasionally till late October.
Sunny, open deciduous forests.