Common in oak woodland throughout the British Isles. Widespread and fairly common in Hampshire and on the Isle of Wight. Wingspan 13-18 mm. Similar to, but larger than, Larch Tortrix Z. griseana, and differing in having smaller dorsal patch than griseana. Larva feeds on Oak, living between leaves spun together with silk.
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