Beautiful Hook-tip 1.
(Laspeyria flexula)

At first I thought this was an Oak Hook-tip but the wing shape makes it definitely a Beautiful Hook-tip.

Information:
The overall colouring is a subdued brown and, prominently displayed in the two reasonably straight creamy brown crosslines there are two dark dots. The general shape, at rest, is a broad triangle with a gently waved outer edge terminating at each corner in a 'hook.'
Fore-wing length: 13-15mm. They are common but distributed in localised patches and can be seen flying in woodland, scrub, hedgerows, orchards and mature gardens in June-July.