Muslin Moth Diaphora mendica
Wingspan 28-38 mm.
Showing distinct sexual dimorphism , the males of this moth are soft brown, the females white, both sparsely speckled with black.
It occurs in woodland, downland and suburban habitats, and is relatively common in most of Britain.
The larvae feed on a variety of low plants, including dock (Rumex) and chickweed (Stellaria).