Common in broad-leaved woodland, scrub, hedgerows and gardens throughout the British Isles, a species of conservation concern under the UK Biodiversity Action Plan. In Hampshire and on the Isle of Wight widely distributed, but not particularly common. Wingspan 38-48 mm. Occurs in two forms, and their intermediates, in any shade on a scale from green to brown, but always easy to recognise and unlike any other British moth. Larva feeds on Hawthorn and Blackthorn and, less frequently, other broad-leaved trees and shrubs.