Last modified: March 2, 2021, 11:54 a.m.
A common species throughout Belgium.
The larva lives in a shoot or in the catkins of the food plant, sometimes congregating under bark in the spring. The larva hibernates.
Pupation in a cocoon in or under the bark.
They occasionally come to light.
The adults fly from late June till the end of September, sometimes well into October.