McGrath State Beach, Ventura County, California, USA July 9, 2012 Size: ~ 1/2 inch
Found in the sand dunes. I'm not sure if ID will be possible with these blurry pictures (they wouldn't sit still and are VERY fast!), but looking to confirm species. I am using Hartmut Wisch's photo as a possible match (http://bugguide.net/node/view/174314).