Nationally scarce (Nb) in marshes and fens and along freshwater margins in the Cambridgeshire fens and, very locally, in Hampshire. In Hampshire still regular in and around Titchfield Haven, with occasional wanderers elsewhere; recently found in the Afton Marsh area of the Isle of Wight and undoubtedly now resident there. Wingspan 24-27 mm. An easily recognised species, though it could conceivably be confused with the scarce immigrant
Antigastra catalaunalis [Goater]. Larva feeds on Greater Pond-sedge