Last modified: Sept. 24, 2020, 11:34 a.m.
A common species in the northern part of Belgium, elsewhere not so common.
The adults fly from the end of July till the beginning of October. Most abundant in August. They can be disturbed from the vegetation during the day and come to light.
The larva feeds in a tubular silken tunnel along the stem-bases of several grasses. It hibernates.