Last modified: Sept. 15, 2023, 12:11 p.m.
A very rare and local species in Belgium, mainly known from the Kempen. Outside this area are probably wanderers.
Native
Hibernates as a larva and pupates in a thin greyish cocoon inside a stem of reed. The adults come to light.
The adults fly in one generation a year; from mid June till mid August.
The larva lives on Phragmites australis and on lichens and algae growing on dead wood.