Local on heathland, moorland and calcareous grassland throughout the British Isles. In Hampshire and on the Isle of Wight once locally frequent on the dry chalk, nowadays it is found only on the damp heaths of the New Forest and the north-east, with occasional wanderers appearing elsewhere. Wingspan male 40-50 mm, female 35-45 mm. Unmistakable. Larva polyphagous on various heathland plants, including Heather, Bell Heather, Sheep's Sorrel, Devil's-bit Scabious, Common Dog-violet, Ribwort Plantain and Greater Plantain.