Wingspan 24 to 29 mm. This species exhibits some variation, with darker forms occurring in the north, and a reddish brown subspecies hethlandica in the Shetland Isles.

Areas where the larval foodplants are plentiful.

The moths fly from June through to August, and can be attracted to light.

The green larvae feed on a range of plants such as bilberry, willow and heather.

Fairly common in places throughout the British Isles. In a recent survey to determine the status of all macro moths in Britain this species was classified as common.

Fairly common in Leicestershire and Rutland. L&R Moth Group status = A (common and resident).