Last modified: Feb. 25, 2021, 3:42 p.m.
A common species throughout Belgium. Most observations are cases found on tree trunks, mainly in spring time.
Young larvae usually live in the low vegetation, on tree trunks, in crevices of rocks where they find their food. Before pupation, they tend to crawl to higher substrates like fences or tree trunks and then they can easily be recorded.
The female is apterous and usually stays in the case where it is furtilized. The males are active at night and are often attracted to light.
One generation a year: from May till early July.
Mesophilic forests with little undergrowth, but also in open landscapes.