Local on chalk downland, dry pastures, sand-hills and sea-cliffs throughout the British Isles, predominantly coastal in the north of its range. Widespread but distinctly uncommon in Hampshire and on the Isle of Wight. Wingspan 12-16 mm. Similar in forewing markings and coloration to the rare and local
C. doubledayana, but usually larger and differs in the shape of the forewing, the costa being more gently arched and the apex more angular and prominent [Bradley]. Day-flying, occasionally comes to light. Larva feeds on Wild Thyme, Common Sea-lavender and Thrift.