There is a light wavy line, which is limited mainly to the inside edge and marked on both sides by dark stains in the marginal field.

The fore and hindwings have black discal flecks, which are occasionally significantly weaker on the forewings.

Outside Europe it is found in Morocco and Northwestern Turkey, the Caucasus and Transcaucasia, from North Iran it extends to Afghanistan and Central Asia.

The adults fly at night from June to August, occasionally later,[1] and are attracted to light.

The species prefers damp locations such as marshy woodland, fens and river banks.