Potato Capsid (updated)

This shielding was sunning itself on the fence post. From the bug website I'm pretty sure it's a Common Green Shieldbug Palomena prasina, though it is rather slim. It may be a youngish one.
Update: It's been confirmed by the brilliant Tristan Bantock that actually it's the Closterotomus norwegicus Potato Capsid.

Although known as the potato bug it prefers yarrow and nettles, although has been known to enjoy strawberries - well, who hasn't?!