Cream Wave Scopula floslactata
Wingspan 29-33 mm.
The nominate race of this moth is found fairly commonly throughout England, Wales and Ireland, whereas in Scotland there is a smaller, darker variety scotica.
It inhabits deciduous woodland, where the larvae feed on dandelion (Taraxacum) and knotgrass (Polygonum).
The species is single-brooded, being on the wing in May and June.