Last modified: Oct. 5, 2020, 11:21 a.m.
A fairly common species in Belgium.
The larva makes a typical round blotch on the upperside of a leaf with the frass dispersed in arches.
See also bladmineerders.be
The adults fly in one or two generations a year; during June and July and around August.
The larva mines the leaf of Chaenomeles, Cotoneaster, Crataegus, Cydonia, Malus sylvestris, Mespilus, Prunus, Pyrus, Sorbus aucuparia and Betula.