Last modified: Oct. 30, 2023, 7:28 p.m.
Newly discovered in Belgium in 2013, but rapidly spread all over Flanders; currently (2020) only recorded from the provinces HA and LG in Wallonia.
Head white; forewing ground colour silvery white, sometimes darkened with very light ochreous scales; the dorsal half of the apical area often darkened with greyish brown scales; five ochreous to brown costal striae of which the second one is prolonged to the dorsum, thus forming a narrow transversal band; a black spot in the apical area from which three dark brown hooks depart into the cilia.
The summer generation has the basal part of the forewing white, whereas the late, hibernating generation has dark grey suffusion in the basal part of the forewing. This suffusion may form an ill-defined longitudinal fascia.
The eggs are oviposited mainly on the upperside of the leaf.
Pupation under a flimsy membrane at the end of the corridor at a margin of a leaf, which is turned over the membrane.
The adults are active at dusk and hibernate in the adult stage.
Not much is known about the situation in Belgium; but probably moths can be found from late November, hibernating till April–May.