Dainty Sulphur - Nathalis iole
Solana Beach, San Diego County, California, USA
September 15, 2012
It looks like this small butterfly was Ovipositing on this plant. This is at the San Elijo Lagoon right on the trail about 20 feet from the water. I'm not sure what the plant is but there was a lot of Pacific Swampfire in this area.