A variant of Harmonia axyridis (Coleoptera: Coccinellidae) with orange-red elytra and only faint black spots.
Here is one with larger spots:
And on this one some of the spots are beginning to merge:
First two photos taken in Whiteknights Park, Reading, UK, on 2012-07-28 and 2012-06-13, respectively. Third photo taken in the field below Chazey Wood, near Caversham, UK, on 2012-10-20.