Forewing grey or grey-brown and rather pointed, quite sharply in female, which is generally smaller. Dark cross-bands before and after central dot are of more or less thickness, and are edged with greyish white. There is usually a short, dark, narrow diagonal dash at wing tip, not reaching the dark cross-bands.
Overwinters as a pupa, in a cocoon on the surface of the ground among plant debris.
Breckland of Norfolk and Suffolk, limestone and coastal sand-dunes.
Recorded in 1 (0.4%) of the 270 2km squares of Huntingdonshire.
Last recorded in August 2013
Recorded date range (Adult): 23 August to 24 August