Glaucopsyche ID please

[CFB]

I thought that this was clearly a Green-underside Blue (extensive blue suffusion, and no grey submarginal spots) until Chris lead me to a discussion concerning his sightings, and now I have some doubts.

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Colin

[Padfield]

I'd have no hesitation calling alexis. If you're referring to the trend of the spots, although the fifth from the top does turn in more than usual, the fourth keeps on towards the margin. The lack of submarginal markings and the extent of green leave me in little doubt.

Guy

[CFB]

Thank you very much, Guy, for the prompt reply.
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Colin