Last modified: Oct. 12, 2023, 4:42 p.m.
A fairly common species throughout Belgium.
Native
Wingspan: 20–25 mm.
In the male, the upperside hindwing has a doubly-folded lobe along the dorsum towards the base. This character is shared with Pterapherapteryx sexalata.
Hibernates as pupa in a cocoon underground.
They are active from dusk onwards and later come to light.
The adults fly from mid-April till early July.
The larva lives on several species of Populus, but especially on Populus tremula.