Rare (proposed as a future Red Data Book species) on heathland, open woodland and rough pastures in parts of south-eastern England. In Hampshire and on the Isle of Wight recorded very occasionally, and reported from Blackbushe Airfield in the north in 2020. Wingspan 12-15 mm. The main confusion species is
C. genistae, but that species has the ground colour of the forewing paler and more ochreous and the costal streak reaching almost to the apex (MBGBI Vol 3). Larva mines leaves of Broom and Dyer's Greenweed, living within a movable case; case length 8 mm.