Last modified: April 17, 2021, 3:25 p.m.
A fairly common species in the northern part of Belgium, much rarer in the south.
See also bladmineerders.be
The larva lives in a slight silken web on the underside of a leaf of the food plant, causing the upperside to colour brownish. Often, several larvae occupy the same leaf.
Pupation takes place in an open network cocoon amongst detritus on the ground.
The adults hibernate.
The adults fly in two generations a year: from June till August, and again from October till April of the next year.