Last modified: Oct. 9, 2020, 11 a.m.
A rare species in Belgium.
The forewings are ochreous-yellow with a lighter costal longitudinal line.
Wingspan is 10.5–14 mm.
The antennae are alternately ringed brown white till the tip.
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.