Berger's Pale Clouded Yellow

Colias alfacariensis

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Male, Val d'Aran, July 2003

Female, Switzerland

Same female

Provence, July 2004

The top picture shows a male with the forewing slipped the wrong side of the hindwing. This didn't stop him feeding or flying but did mean he often let me see the distinctive uppersides of his wings.

I am fairly certain all these pictures show Berger's clouded yellow, rather than pale clouded. The two species are very difficult to separate unless you get exceptionally close views, like these.