Common in deciduous woodland throughout the British Isles. Present in most if not all of the ancient woodland sites in Hampshire and the Isle of Wight. Wingspan 11-14 mm. In general, coloration similar to A. obtusana, but larger and differs in having a subquadrate basal patch which in A. obtusana is shallowly convex [Bradley]. Larva feeds on Oak and Beech, living within a spun or rolled leaf.
The abundance in each month is indicated as follows:
No records Very occasional Irregular Uncommon Off-peak, but not unusual Off-peak, but not unusual Main flight time