Common in a wide range of habitats, including gardens, marshes, river-banks and open woodland throughout the British Isles. Widespread and common in Hampshire and on the Isle of Wight. Wingspan 36-44 mm. Similar to White-point M. albipuncta
, and sharing that species' black blotch on abdomen of male, but larger and plainer. Larva feeds on various grasses, including Annual, Smooth and Wood Meadow-grass, and Cock's-foot.