Last modified: April 19, 2020, 5:09 p.m.
An uncommon species throughout Belgium.
This species is monochrome greyish brown.
The wingspan is 10–15 mm.
The antennae are alternately ringed black white till the tip.
While growing, the larvae construct a case –cut out of leaf margins– in two or three consecutive steps. The mouth angle is about 60°.
See also bladmineerders.be.
The hibernating larvae are fully grown in mid-May.
The adults fly in June and July.