Wingspan 22 to 28mm. This is one three moths which look very similar and its identity should only be confirmed by dissection. The wings of this species can have a reddish tinge.

Woodland, heathland, other grassy areas.

It is found flying in mid June to mid July and comes to light.

Overwinters as a larva. Pupates in a flimsy cocoon inside the roots of its foodplant grasses such as Cock's-foot.

The species has a wide distribution in Britain, with some records from Ireland. In a recent survey to determine the status of all macro moths in Britain this species was classified as local.

Fairly frequent in Leicestershire and Rutland but difficulty of identification makes it difficult to determine the exact status. It has been classed as L&R Moth Group status = B (scarce resident or restricted distribution or regular migrant).