Last modified: Nov. 7, 2024, 4:34 p.m.
A common species in Belgium.
Native
It makes a fine gallery filled with linear frass, widening abruptly into a blotch, usually at the edge of the leaf.
See also bladmineerders.be
It pupates in a cocoon spun on detritus.
The adults fly in two generations in April-May and July-August. In favourable seasons a third generation occurs in the autumn.