Last modified: March 17, 2024, 12:13 p.m.
A rather rare species in Belgium, more recorded in the northern part of our country. Due to the early flight period and the fact that this is a small species, it is probably overlooked in many places.
Native
Length 7–8 mm, width 2–3 mm, triangular in cross-section, covered with small grains of sand and particles of insects at the fore-end, resembling the case of Dahlica triquetrella.
The larvae live in cracks on tree-trunks, rocks, walls and fences. They often can be found behind the bark of trees.
The adults emerge in the early morning. Females are wingless.
One generation a year, onwards from February towards April.
Open landscapes but also forests and forest edges.