Green Carpet Colostygia pectinataria
Wingspan 22-27 mm.
The bright green colour of this moth when freshly emerged soon fades to a yellowish-brown.
It inhabits a range of habitats, including heaths, mosses and woodland, and is generally common throughout most of Britain.
Like many of its congeners, the main foodplant is bedstraw (Galium).
The single generation flies from May to July.