Wingspan 20-23 mm.
A rare migrant to the south coast of England, this species has only been recorded on a handful of occasions since the first in 1993. It is unlike any other British species and quite distinctive.
The adult shown was caught at light on 19 July 2002. Abroad, the species occurs in southern Europe, where it flies in July and August.
The larvae feed, like other Evergestis species, on Brassicaceae, especially garlic mustard (Alliaria petiolata) and hedge mustard (Sisymbrium officinale).