Wingspan 45mm. Grey, marked with darker and lighter lines and patches, with an S-shaped line of paler blocks towards the end of the fore-wings.
Often found in parks and gardens, but also hedgerows. The caterpillar feeds on the leaves of several species of trees, including sycamore, maple and horse chestnut.
Status and distribution
Fairly widespread but local in southern Britain. Local in Nottinghamshire and recorded at Netherfield Lagoons.
Best time to see
June to August.