This seems to be one of the 100+ colour pattern varieties of the Harlequin Ladybird. I found it in the garden this morning, and you may recall that I found a harlequin pupa some weeks ago. The ladybird above was not very large (for a Harlequin), and its elytra had taken a bit of a knock at some stage. It is the first ladybird I have seen for some days.
I am just about to log it on the Harlequin Ladybird survey here.