Last modified: March 5, 2021, 10:23 a.m.
Only known in Belgium from an old record in WV: Ostend, 1864-07-30, 2 specimens, leg. E. Fologne. Probably extinct since long. Also in the neighbouring countries this species seems to have retracted since long.
Forewing ground colour brownish grey; five dark brown to blackish dots in the middle of the wing; three brown lines in the apical area.
The egg is oviposited on the flowers or seedheads of the larval hostplant during April–May.
The caterpillar feeds among these flowers and seeds in June and July.
The pupation site is unknown.
The species hibernates in the adult stage.
One generation a year: from September till April.