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Matt Rowlings

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Plebejus idas

Idas Blue

Valais, Switzerland, September 2010

Vaud, Switzerland, August 2010

Piedmont, Italy, July 2010

N Sweden, July 2010

Valais, Switzerland, June/ July 2009

NW Greece, August 2008

Valais, Switzerland
Eggs on the larval food plant, Sea Buckthorn.

Valais, Switzerland
Larval food plant, Sea Buckthorn in winter and summer

N Brittany, France, July 2008

Valais, Switzerland, July 2007/8
ssp. callopis

Valais, Switzerland, September 2007

Valais, Switzerland, July 2007

Valais, Switzerland, July 2006

Valais, Switzerland, July 2006

Valais, Switzerland, July 2006

Valais, Switzerland, July 2006

Valais, Switzerland, July 2005

Valais, Switzerland, July 2005

Valais, Switzerland, July 2003

This was just a small part of an immense congregation of blues, mostly idas.

Valais, Switzerland, July 2005

Valais, Switzerland, July 2005

Valais, Switzerland, July 2003

This was just a small part of an immense congregation of blues, mostly idas.

Valais, Switzerland, May 2003

Unusually for the female it is lacking any orange upperside markings.

Generally specking idas resembles the Silver Studdied Blue, P. argus very closely but differs in lacking a hook on the male foreleg tibia. The black borders are usually much finer than in argus but this rule doesn't always hold. For a discussion on the very similar Reverdin's Blue, P. argyrognomon see that species.