Last modified: Feb. 19, 2020, 2:46 p.m.
A fairly common species in Belgium, but numbers vary from year to year.
The adults fly from late March till the end of June. They are active from dusk onwards and later come to light.
The larva lives on the flowers of mainly Quercus, but also of Crataegus. Hibernates as pupa behind loose bark or among plant debris.