This is a female Sandhill Skipper, Polites sabuleti sabuleti. I found these in San Diego at Famosa Slough, which has the host Saltgrass they seem to prefer. All of these were photographed on August 6, 2008.
This is a dorsal shot of the female Sandhill Skipper, Polites sabuleti sabuleti. Females are larger and more boldly marked than males.
A male Sandhill Skipper, Polites sabuleti sabuleti.
The dorsal side of the male Sandhill Skipper, Polites sabuleti sabuleti.