Last modified: April 12, 2021, 10:42 a.m.
A fairly common species in Belgium, but overlooked, due to its difficult determination with many other greyish species.
The larva lives two years. The larva mines a leaf and later lives in a series of portable cases on Pupation in the case, generally attached to the upper surface of a leaf in a sunny position. The adults become active shortly after sunrise and at sunset.
The adults fly in June and July.