Last modified: Nov. 15, 2022, 6:28 p.m.
A very rare and local species in Belgium.
Head ochreous, mixed with some white scales; forewing ground colour pale ochreous, white pattern consisting of a sinuose basal streak, often connected to the first costal stria; four or five costal and four dorsal striae, without any edging; some darker brown scales in the apical area.
A light greyish-brown to brown, elongated mine (15–20 mm), under the bark of young, green twigs, most commonly between two ribs.
See also gracillariidae.net and bladmineerders.be.
The egg is oviposited at the tip of a young, green shoot. The caterpillar mines downwards from this spot. Pupation inside the mine. After emergence of the adult, the pupal skin protrudes from the mine.
One generation a year during May and June.
The species is monophagous on Cytisus scoparius.
Dry, sandy, and xerothermic places.