Black ladybird with irregular-shaped red markings.
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A 2-Spot Ladybird with red-on-black colouration, or another Harlequin Ladybird. If I had measured it and picked it up to have a better look at it this would have been easier! Colouration is most like a Harlequin, in retrospect, it's the lack of white on the thorax which made me wonder if it was a Pine Ladybird.
Difficult to say for sure without a shot of the pronotum or some idea of size, but I think this is a Harlequin, although the colouration is quite dark.
The other possibility is the chequered form of the 10-spot ladybird, Adalia decempunctata - the semicircular red markings at the front of the elytra are particularly suggestive - but it doesn't look close enough, particularly what can be seen of the pronotum, which has far more white in this species.
Although there is something of a lip, I don't think it's enough to be Pine - also, the Pine has a matt finish, while this is very glossy. Also, Pine is one of the species with very limited variability in colour patterns, and would have to change an awful lot to get to this!
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Lat/Lng: 52.9, -1.2
OS grid ref: SK5939