Geranium spec., Flevoland, Reve-Abbertbos © Hans Jonkman

mine

the mine is upper surface, and the frass pattern indicates an agromyzid. All mines are vacated, which means that the larvae have been able to complete their development; this seems to exclude xenophagy. Without a larva a more precise identification is not possible.

host plants

Geraniaceae

Geranium.