www.ukbutterflies.co.uk

Yours is definitely dorylas, David, but Matsukaze's first butterfly is not. Female dorylas is rather similar to the male on the underside, with those lovely heart-shaped orange spots lacking much black and the white borders perhaps even more conspicuous. Here is one from Switzerland:



It is a very characteristic look. I am pretty confident Matsukaze's insect is agestis.

Guy

Final few pictures - from the return journey.

This one was in a damp meadow near the top of the pass between the Durance valley and Grenoble. Can it be identified as sinapis or whatever they believe the other one to be at the moment?
These two fritillaries were found on the same site in central France. The first (upperside only) possibly Mellicta aurelia, the second (both views) possibly parthenoides.