Last modified: March 14, 2021, 10:33 a.m.
A very rare species in Belgium, but as with many Elachistidae probably underrecorded.
The larvae feed on various food plants. The larvae mine either upwards or downwards and the mine gradually widens with all frass deposited at the beginning of the gallery.
They hibernates within the mine.
The adults fly in two generations a year: from mid May towards early July and again in August.