A common species in Belgium. 

The yellowish larva makes a leafmine on Quercus petraea and Q. robur. The mine is a long irregular gallery with the frass lying in a very small line in the initial part and widens later, but never broader than 1/3 of the gallery, leaving broad clear margins. Pupates in a dark brown cocoon among leaf litter.

The adults fly in two generations a year; from May to June and again onwards from August till September.