Common immigrant from mainland Europe, appearing throughout the British Isles, in some years arriving in sufficient numbers to breed in small numbers. In Hampshire and on the Isle of Wight a common immigrant, which is widely distributed throughout in some years. Wingspan 40-55 mm. Has a distinctive set of arrow-shaped darts, one pointing outwards from the reniform stigma, with two smaller ones facing inwards near the margin. Larva feeds on various herbaceous plants, but unable to over-winter in significant numbers.