Last modified: Feb. 25, 2021, 3:59 p.m.
A very rare and extremely local species occurring in WV in Belgium, recorded for the first time in 2008.
Difficult to detect because of its cryptic lifestyle.
Length 5–8 mm, longitudinally covered with grass blades.
The larva attaches its case firmly to grass and is very difficult to detect. Pupation takes place affixed to grasses.
Males tend to attach their case lower on the grass than females do. Males tend to fly very low over the vegetation in sunshine.
One generation a year from mid April till June with a peak in the first decade of May.
Grassy salt-marshes and meadows.