Last modified: Nov. 10, 2019, 6:20 p.m.
An uncommon species in Belgium, after 2004 found more, so now its known in the whole of Belgium.
The ochreous fore wings have distinct white lines. The costa line is extending till 5/8 of the wing.
The antennae are on the upper side alternating ringed till 2/3 or even 3/4.
Wing span is 13,5–17 mm.
The yellow-brown to light grey silken case has darker length lines. The case is large, up to 17 mm and very slender. The end is three-valved.
The mouth angle about 50°.
See also bladmineerders.be.
The eggs are deposited at the underside of a leaf.
The larvae are feeding at the underside of the leaves.
Full-grown cases in September – October; after hibernation the larva usually does not feed anymore and pupates nearby at ground level.
The adults fly in one generation a year; during June and July. They come to light.
This species can be found nearly everywhere.