Males can be easily distinguished from both sexes of E. gentianaeana and E. oblongana by its white hindwings. Both sexes can be seperated from E. gentianaeana by the narrower area of whitish ground colour distad of the median fascia. Some specimens, especially females, may need retaining.
Rough meadows and grassland, waysides, embankments, damp woods, boggy heaths and fens. Noted as "common in Norfolk heaths and fens" by Barrett in 1874. Only a few post Victorian records from East Walton 1996; Whitlingham 2001; Scole 2001 and Stoke Holy Cross 2001.