Small Tortoiseshell Butterfly, Aglais urticae, high on the slopes of Mont Ventoux, France. There were a lot of these beautiful Tortoiseshell butterflies; however,they would typically close their wings for better camoflage when they landed. I finally found one with his wings open, as shown in this shot.
This beautiful butterfly is found throughout Europe, Asia, Siberia, China, Mongolia, Korea and Japan. It's larvae apparently feed on stinging nettles in at least part of its range.