Last modified: Aug. 26, 2021, 10:39 a.m.
A rare but widespread species in Belgium. Most observations in the northern part of the country.
Hibernates as a pupa, in a cocoon among living reed foliage or debris on or near the ground. The adults are active from dusk onwards and later come to light.
The adults fly in two generations a year; from April till mid September. Very occasionally a partial third generation occurs in October.
The larva lives mainly on Phragmites australis but also on other plants of wet habitats like Lysimachia vulgaris, Rumex hydrolapathum, Cladium mariscus, Carex paniculata and Salix.