Common in orchards and woodland throughout the British Isles, more numerous in the north. Rather uncommon in Hampshire. Not recorded from the Isle of Wight to date. Wingspan 10-14 mm. Day-flying, but may come to light. Similar species include
A. spinosella, from which
A. conjugella is distinguished by the ochreous tinge of its ground colour, slightly larger size and later flight time; and
A. semifusca from which
A. conjugella is distinguished by its more marbled markings and ochreous ground colour. Larva mines fruit and berries of Apple and Rowan, causing sufficient damage to be a serious pest in some area, and over-wintering as a pupa in a cocoon.