Last modified: March 26, 2021, 11:02 a.m.
An uncommon species in Belgium, mostly observed in the northern part.
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 any more and pupates nearby at ground level.
They come to light.
The adults fly in one generation a year: during June and July.
This species can be found nearly everywhere.