Male, Switzerland, February 2007
Female, Switzerland, February 2007. This female was entirely white above and I presume she is form helice. However, there is some yellow on the underside forewing.
Val d'Aran, July 2005
This is an old photograph, taken in Gibraltar (1983)
Usually clouded yellows don't show the upperside. But while flirting they occasionally do and this picture catches a female upperside.