Pearl Crescents (Phyciodes tharos) were among the most common butterflies at the Negri-Nepote refuge yesterday morning. This one sat and nectared on some flowers long enough for me to shoot a few photographs. The sun was especially bright (being as it is close to summer solstice), so I could use the fast shutter speed necessary to freeze the butterfly's wings.
Here is a view of the underwing.
Clouded Sulphurs (Colias philodice) were also abundant. This one was nectaring at a purple coneflower.