Common in woodland, scrub, hedgerows, parks and gardens, throughout the British Isles. Wingspan 50-62 mm. One of the largest and most spectacular geometers. Larva feeds on woody plants such as Blackthorn, Hawthorn, Goat Willow, Black Currant, Elder, Horse Chestnut and Ivy.
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