Last modified: April 12, 2021, 9:42 a.m.
It was only found before 1980 and only in BR. Most likely it has vanished from the Belgian soil.
This species is monotone grey with barely visible somewhat darker grey dots. The wingspan is 9–11 mm. The antennae are annulated with broad brown and narrow white rings.
This species initially constructs a case with flower-parts of and a ochreous silken tube-shaped top which is whitish or light gray in springtime but turns to brown later on. The mouth angle is about 80°.
See also bladmineerders.be.
Eggs are oviposited on the flowers of the host plant. The larva initially feeds on these flowers and subsequently on the seeds, living inside one. A light ochreous silken case is constructed, almost entirely enclosed with the remnants of a flower. The full-grown larvae leave their host plant and hibernate on tree trunks.
The caterpillars can be found from July till April.
The adults are mostly observed in May.
This species lives monophagously on Luzula pilosa