Callippe Fritillary (Speyeria callippe meadii) on a Field Milkvetch.
Melissa Blue Butterfly (Plebejus melissa)
This could be Arctic Blue Butterfly (Plebejus glandon).
Checkered White Butterfly (Pontia prosodic) on Wedgeleaf Fogfruit.
Queen Butterfly (Danaus gilippus) on a Rubber Rabbitbrush.
Gray Hairstreak (Strymon melons) on Bee Plant.
Buckeye Butterfly (Junonia coenia) on Rabbitbrush.
Mourning Cloak Butterfly (Nymphalis antiopa) on dandelion.
Mourning Cloak Butterfly (Nymphalis antiopa). Laying eggs.