This moth has a distinctive wing repose when at rest, for it folds the wings like a tent above its body. It has an ochreous forewing with rusty brown line markings. It has two conspicuous dark rusty-brown discal spots. Wingspan 25 to 28mm.
The caterpillars can be a pest to gardeners for they eat various Cruciferae, especially Cabbage, Turnip and Horseradish.
The adults fly in two broods, one May to June, and the other August to September. Attracted to light. Found in gardens and allotments. Common and widespread throughout the British Isles.
May 2011, rear garden, Staffordshire. © Pete Hillman 2011.