Nationally scarce (Na) on mountains, rocky hillsides and quarries, up to 600 m in north Wales, a priority species under the UK Biodiversity Action Plan. Unlikely to be recorded in Hampshire or on the Isle of Wight. Wingspan 35-40 mm. Variable, but quite distinctive within its range. Larva feeds on Common Rock-rose, Wild Thyme, Sheep's Sorrel, Harebell, Salad Burnet, Bell Heather, Goldenrod, Lady's Bedstraw, Creeping Willow, Foxglove and Heather.