Common on calcareous grassland, sand-dunes, farmland and open woodland throughout the British Isles. Widespread and common in Hampshire and on the Isle of Wight. Wingspan 32-40 mm. Superficially resembles
Common Rustic Mesapamea secalis and its congeners, but postmedian fascia highly dentate (sinuate in
Mesapamea), with the main confusion species either extremely rare (
Dumeril's Rustic L. dumerilii) or with a limited coastal distribution (
Sandhill Rustic L. nickerlii). Larva feeds on roots and lower stems of various grasses, including Common Couch, Red Fescue, Sheep's-fescue, Tall Fescue and some cereal crops.