Very rare immigrant, with at least some of the records probably arising from deliberate release or accidental importation. Not reliably recorded in the wild in Hampshire or on the Isle of Wight. In its native range, common in dry open areas, woodland edges, gardens and orchards; 0-1500 m throughout much of mainland Europe, more numerous in the south. Wingspan 64-90 mm. Larva feeds on Blackthorn, Hawthorn, Rowan, Plum and other fruit trees.