Last modified: Feb. 21, 2020, 11:58 a.m.
A local and not so common species throughout Belgium, restricted to wet biotopes. More observed in the northern part of the country.
The larva feeds in stems and roots of various marshland plants. Overwinters as an egg and pupates in a flimsy cocoon in leaf litter. They come to light, sugar and also flowering grasses.
The adults fly from late June till end September in one generation.
The larva feeds on various marshland plants as Iris pseudacorus, Acorus calamus, Cladium mariscus, Glyceria maxima, Carex acutiformis and others.