Local in a wide variety of habitats, including hedgerows, woodland, calcareous grassland, fens and hillsides throughout the British Isles. In Hampshire widespread and locally frequent in the south, less common in the north and on the Isle of Wight. Wingspan 35-42 mm. Only likely to be confused with dark forms of Poplar Grey Acronicta megacephala
, but smaller, with more rounded apex. Larva feeds predominantly on Ash, but also on Alder and Hazel, over-wintering as a pupa.