Local in marshes, gardens, hedgerows, scrub and woodland throughout much of the British Isles. In Hampshire and on the Isle of Wight is likely to be under-recorded, since it comes rarely to light, although it does come to sugar. Appears to favour watercourses through deciduous woodland, and is sometimes found roosting communally under bridges over streams. Wingspan 64-74 mm. Unmistakable. Larva feeds on various herbaceous and woody plants, such as Chickweed, Dock, Ivy and Hawthorn.