Dusky Brocade.
(Apamea remissa)

As there are at least 7 other somewhat similar moths, I needed some help to 'fix' this one.

Information:
The Dusky brocade can be confused with: Confused, Crescent Striped, Dark Brocade, Large Nutmeg, Light Brocade, Pale-shouldered Brocade and White Colon. Fore-wing Length is 17-19mm and it is broad with a strongly curved leading edge.
They like grassy places such as gardens, hedgerows and open woodland where they can be seen flying, over most of Great Britain, during June-July.