Local in woodland and hedgerows throughout much of southern England and Wales, south of a line from the Mersey to the Wash. In Hampshire and on the Isle of Wight Dutch elm disease has played havoc with the population of this elm-feeding species; formerly fairly widespread and not uncommon locally where there were tall elms but it has now all but disappeared. Wingspan 28-35 mm. The most likely confusion species is
Lunar-spotted Pinion C. pyralina, which see for differences. Larva feeds on English Elm, Small-leaved Elm and Wych Elm, over-wintering as an egg.