Insects

Brown Argus,aricia agestis, Common Blue, polyommatus icarus or Silver-studded blue, Piebejus argus?

I thought I had this one identified, then I checked again, and again. Any ideas, brown argus (aricia agestis), common blue (polyommatus icarus) or silver-studded blue (piebejus argus)? The photograph was taken at Slop Bog, a natural heath area and SSI.

Location: Slop Bog, East Dorset

Photographer: Mike Walker

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