The wingspan is 18–24 mm. The length of the forewings is 10–11 mm.
The wings are short and wide, the forewings whitish or white-grey in ground colour. The midfield usually stands out distinctively dark brown, with a narrow middle band sometimes appearing even darker. The postdiscal region and the marginal area shimmer light brown. Ring, kidney and cone blemishes (orbicular, reniform (kidney shaped), and claviform discal marks) are absent or hardly recognizable. The hind wings are monochromatic white-grey and darkened at the edge. Male moths have combed antennae, while female moths have thread-like antennae. The palps are bright and conspicuously long.
[1]
Biology
The moth flies in one generation from mid-June to August [1].