Last modified: March 14, 2021, 11:33 a.m.
A very rare species in Belgium.
The adults fly in two overlapping generations from late June towards early August. The adults come to light.
The larva feeds in stems of Juncus conglomeratus, Scirpus lacustris and S. subatiflorus. Pupation takes places in a slight cocoon in the larval feeding place.