Common in grassland, woodland rides and gardens, and on roadside verges, moorland and heathland throughout most of the British Isles, but local in Scotland and mainly coastal in Ireland. In Hampshire and on the Isle of Wight generally widespread and common, often abundant. Note that records after the end of July are more than likely to be Orange Swift, which see. Wingspan male 25-33 mm, female 32-40 mm. Variable, often fairly plainly marked, especially the females. Larva feeds on the roots of grasses and a wide range of wild and cultivated plants.