Davey, P., 2009: A widespread species in Britain, the larva feeding on the inner parts of various grasses, sedges and rushes. In Dorset, the moth is local and confined to marsh and fen habitat where it is generally at low density. However, exceptions are: Whiteway Fen where rush-rich fens surround emerging chalk springs, and among the herb-rich water meadow at Burton; in these places the moth is common. A partial second brood is suspected during the early autumn with the following the latest dated record for the moth: Powerstock Common, at MV on 7 November 2004 (P Davey).

The following are likely to have been dispersed examples: Portland, at MV on 16 and 17 August 1997, 25 August 2001 (M Cade).

Recorded in 33 (83%) of 40 10k Squares.
First Recorded in 1935.
Last Recorded in 2019.
(Data up to end 2019)