The wingspan is 14–18mm. The forewings are blackish with a narrow very slightly sinuate white fascia beyond middle; tips of cilia white. Hindwings are as forewings, but fascia slightly curved.
The moth flies from May to August depending on the location.
↑Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf This article incorporates text from this source, which is in the public domain. Keys and description
Further reading
Mark Parsons, Sean Clancy, David Wilson A Guide to the Pyralid and Crambid Moths of Britain and Ireland: Atropos, England. ISBN9780955108648