Silver-studded Blue
Plebejus argus

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Plebejus argus

Male, Switzerland, June 2013

Plebejus argus

Male, Switzerland, June 2013

Plebejus argus

Mating pair, Switzerland, July 2013

Plebejus argus

Males, Switzerland, July 2013

Typical male, Switzerland, June 2005

Typical female, Switzerland, June 2005

Mating pair, Switzerland, June 2005

Male underside, June 2005, Switzerland

Female underside, June 2005, Switzerland

Male, Suffolk, UK, 1984

Female, Suffolk, UK, 1984

The silver-studded blue is widespread in Europe and often common, though in England it is restricted to heathland in the south and west. It is one of three species that have silver studs on the underside hindwing - the others being the idas blue and Reverdin's blue. Reverdin's is rather rarer but idas is also widespread and it is not always easy to tell these species apart. Generally, however, the male silver-studded blue has broader dark borders on the uppersides than the others, setting off the pure white fringes in a very characteristic way.