Observation notes: Butterfly photographed, temperature in the mid 60s. Light breeze. Sunny. Elevation approximately 4000 ft. Nectaring on native phlox. I saw 50 to 100 Clodius on the drive and walk to the top of the mountain. Many were nectaring on ox-eye daisys growing alongside the slow vehicle turnouts. Some appeared to be patrolling patches of flowers.