Last modified: Oct. 2, 2021, 11:01 a.m.
A locally fairly common species. It occurs in wet biotopes where the larval foodplant grows.
See also bladmineerders.be
The adults fly from the end of June till the end of August. When conditions are right, small numbers can be observed until late in October. They fly at dusk and come to light.
The young larva makes a mine in the lower part of a leaf of Typha latifolia, or occasionally T. angustifolia. After hibernation, it feeds in a dead stem, sometimes gregariously. Pupation takes place in the mined stem.