Last modified: Jan. 9, 2023, 2:21 p.m.
A very rare and local species, recorded for the first time in Belgium in 2016.
Dark green or greyish green: head capsule and prothoracic segment black.
A loose silken cocoon; pupa brown.
The caterpillars live, often gregariously, in the flower heads or between leaves spun together. Where the species occurs, it can sometimes be very common.
Pupation in a loose silken cocoon in the soil or amongst detritus.
The species hibernates in the adult stage. The adults are rarely seen, they are active at night and occasionally come to light.
One generation a year: from August and after hibernation in March–May.
Ruderal places, sandy areas, road sides.