Last modified: Jan. 15, 2021, 2:10 p.m.
A common species in Belgium.
The larva makes a leafmine usually starting close to the edge of the leaf of Fagus sylvatica. The initial gallery leading away from the leaf edge and progresses towards the midrib. It pupates in a cocoon spun on detritus.
See also bladmineerders.be
The adults fly in two generations: April-May and from late June towards early August.
The monophagous larva makes a leafmine on Fagus sylvatica.