Buff-tip.
(Phalera bucephala)

A Buff-tip in my garden - It looks, for all the world, like a broken bit of a small branch stranded amongs the prickly leves.

Information:
This is another of those almost instantly identifiable moths - If you can spot it in the first place! It does look like a small chip off of a birch twig. The male is smaller (22-26mm) than the female (26-34mm) and either of them can be seen May-July in gardens and, as you would expect, in woodland, scrub and hedgerows.