Last modified: Aug. 13, 2022, 2:27 p.m.
A not so common species in Belgium, mainly known from te northern part of the country.
The larva lives inside the stem. Hibernates as a small larva and pupates low down in an old stem of the food plant.
The adults fly in the hour before dusk and occasionally come to light later in the night.
The adults fly from mid June till late August in one generation a year.
The larva lives on various species of Juncus.