Common on waste ground, hedgerows and roadside verges throughout the British Isles. In south Hampshire, recorded in small numbers, mainly on Portsea and Hayling Islands; extremely uncommon in north Hampshire and on the Isle of Wight. Wingspan 16-22 mm. The main confusion species are
A. scopariella, which always has two or three small white dots in the disc,
A. propinquella, which has the costa more arched, with regular dark fuscous maculation, and apex more rounded, and
A. carduella, which has a vertical dark mark near base half way to costa (MBGBI Vol 4 part 1). Larva feeds on Knapweed, Spear Thistle and Creeping Thistle, living within a spun or rolled leaf.