Last modified: Aug. 13, 2019, 2:43 p.m.
An uncommon species in Belgium found more frequently after 2004.
The full-grown larva lives in a brown case of 9–11.5 mm, the end is bivalved.
The mouth angle 0–20°.
Just behind the mouth, the case shows a conspicuous bend.
See also bladmineerders.be.
Oviposition generally on a vein.
The larvae are fully developed in June–July.
The adults come to light.
The adults fly in one generation a year, during June and July.
Monophagous on Ulmus.