Thought to be extinct in the British Isles, formerly in sand-dunes and shingle beaches in parts of southern England, although one was taken in Buckinghamshire in 2013 by Dave Wilton, who contributed the photo displayed here. Wingspan 13-17 mm. Similar to
A. williana but distinguished by its larger size and the yellower general appearance of the forewing, and in the male the presence of mottling on the hindwing [Bradley]. Larva feeds on flowers of Sea Holly.