Glaucopsyche alexis - Green Underside Blue

Glaucopsyche-alexis-green-underside-blue | PTKbutterflies
Glaucopsyche-alexis-green-underside-blue | PTKbutterflies
Glaucopsyche-alexis-green-underside-blue | PTKbutterflies

The blue hue of the male of this species has to be one of the most vivid in Europe. They make for an extremely attractive butterfly photo.