Christina Sulpher

Only based on the fact that this sighting was in May, i think it is Christina Sulpher....

Colia christina
May 17 2014,
 Arch creek

And another one towards Kusawa Lake, July 13 2014

It likes legumes the literature says, well it is feeding on one.

Clouded Sulpher

Colias philodice
June 16 2014
in the yard
feeds on vetches (astragalus)