I didn't even know I had this photo until I revisited a collection looking for good plant photos. This was taken on the Great Orme where there is a distinct sub-species (ssp caernensis) of this butterfly but to confuse matters the usual sub species (ssp argus) also flies there. The more solid dark edge markings on this male suggest ssp argus and not ssp caernensis. Plebeius argus ssp caernensis (male) has the blue of the wing extending through the black band to produce a more flecked appearance rather than a solid dark edge as in this one.

Great Orme, North Wales, 18th July 2002

Added on 7th Oct 04, amended on Jan 31st and Feb 7th 05, updated 27th Jun & Nov 6th 08, updated 7th Jun 10 and Jun 17th 10