George
Kevin..... yeah, it looks like a Kevin.
Butterfly wings can move up to to rest with wings together above the thorax. Moths typically hold their wings like your guy. Also thick antennas and I bet he's got a chubby little body under those wings....or is it a moth?
A moth flapping its wings in Orpington can lead to a hurricane in China. Probably.
Good thing it wasn't in Orpington then.