Last modified: April 7, 2021, 12:14 p.m.
A very rare species in Belgium, hitherto known only from the extreme south of the country.
The larva lives on the leaves and shoots from a silken gallery along the plant, extending downwards into the vegetation at ground level.
Pupation takes place in a silken cocoon in the ground, close to the larval foodplant.
One generation a year: June–July and August.
Monophagously on: Helianthemum nummularium.
Mainly on chalk and limestone downland.