Brussels Lace - http://www.flickr.com/photos/qwertyqwertyqwerty/
The Brussels Lace (Cleorodes lichenaria) is a species of moth in the Geometridae family.
This species is local in Britain, inhabiting woodlands during Summer, and sometimes Autumn. This small member of the Ennominae subfamily has a wingspan of about 30mm, and the wings are whitish or greenish in colour, with dark speckling, which is some examples, can make the moth appear dark.
The larvae feed on lichens.
When the Brussels Lace is active