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I've been long puzzled by this photo taken on Ivythorn Hill near Collard Hill in Somerset, on 2nd August, 2015.
I eventually decided it must be a common blue, but I'd be grateful for any fresh ideas/confirmation …

James

Hi James - I think this is a Common Blue (and the date rules out anything to do with Large Blue!).

Cheers,

- Pete

Thanks, Pete,

It's good to put this puzzle to rest,

James