Common in rough grassland, hedgerows, waste ground and woodland edges throughout much of the British Isles. In Hampshire recorded in recent years only from Pamber Forest, Old Basing and Blagden Lodge, Wildhern, in the north of the county, and Botley Wood and Chandler's Ford in the south; there have been no recent records from the Isle of Wight. Wingspan 19-24 mm. Most likely to be confused with
A. heracliana, from which
A. ciliella differs by, on average, a larger wingspan, the ciliary lines in the hindwing are more distinct and usually number five, and the underparts are usually more strongly tinged with pink; reliable separation can sometimes only be made by dissection of the genitalia (MBGBI Vol 4 part 1). Larva feeds on Wild Angelica, Wild Parsnip, Wild Carrot, Milk-parsley, Pepper-saxifrage and Hogweed, living within a spun or rolled leaf.