Wingspan 17-23 mm.
A local species, occurring in England and Wales and parts of Scotland. The curved dark bands at the base of the forewings are quite distinctive, but their intensity varies, and the female is generally paler than the male.
It inhabits woodland and is quite secretive, but can be attracted to light at night. The adults fly in July.
The larvae feed on the flowers of bluebell (Endymion non-scriptus) and oxeye daisy (Leucanthemum vulgare).