Rare (proposed as a future Red Data Book species) on chalk downland and grassy slopes in parts of southern England, predominantly coastal. In Hampshire and on the Isle of Wight the species has two strongholds where it is common, on Porton, Broughton and Stockbridge Downs on the mainland, and Compton Down on the Island. Occasional specimens encountered away from these localities suggest that there may be other, perhaps small, colonies still undetected. Wingspan 25-29 mm. Both wings have a very narrow, dark terminal line and greyish cilia, producing a sharply pencilled outline to the wings which, together with the presence of a third stigmatal spot in the forewing, makes this species easy to recognise [Goater]. Larva feeds on Hedge Bedstraw, Field Woundwort, Black Horehound, Small Nettle and Mignonette.