Last modified: Nov. 21, 2024, 11:53 a.m.
A not so common species in Belgium.
Native
The young larva makes a small circular blotch mine in the leaves of the food plant Then it falls to the ground in a case cut from the blotch. The caterpillar then eats withered leaves. It hibernates fully-fed in that case.
Pupation in the case, normally attached vertical among a base of a tree trunk.
The moths are active during the day and later come to light.
The adults fly from mid-April till the end of May in one generation a year.
The young larva lives on Alnus, Betula, Corylus, Acer, Carpinus, Cornus, Malus, Prunus, Pyrus, Sorbus and Tilia.