Local in hedgerows, scrubland and orchards throughout much of Britain, but not in northern Scotland; rare in Wales. Probably under-recorded in Hampshire and on the Isle of Wight, where the extent of known records correlate with those areas in which the recording effort is concentrated. Wingspan 8.5-11.5 mm. Imago separable from C. prunifoliae
and C. spinella
only by dissection of the genitalia. Larva mines leaves of Blackthorn and Apple, living within a movable case; no feature is known for distinguishing cases of the three species, and the moths must therefore be bred and dissected.