It was on a window in Bournemouth and had lost a hind leg and part of an antenna. About 1 inch long.
CLOSED: Is this a cricket ?
It looks to be an immature female katydid (immature for lack of wings) Possibly a bush katydid?
That seems correct - http://www.online-utility.org/image/gallery.jsp?title=Leptophyes+punctatissima