Last modified: May 7, 2024, 12:31 p.m.
A very rare and extremely local species in Belgium.
This species is considered Endangered according to the IUCN Red List category for Flanders 2023.
Native In Belgium since October 1947.
The larva feeds inside the stems and leaves of the host plant. Hibernates as an egg, laid in rows on the leaves of the food plant. Pupates near ground level, within a stem of the food plant.
The adults are active from dusk onwards and later come sparsely to light.
The adults fly from late September till late October in one generation.
The larva feeds on Glyceria maxima and Carex acutiformis.
It is to be found in marshy areas and other damp localities.