Observation notes: This moth was attracted to a black light during the Earth Day Night Tour for Families at the Claremont Colleges' Bernard Field Station (www.bfs.claremont.edu). I think it must be Plataea, but I am unsure of the species.
(The photo looks a little funny because it was made by combining the in-focus bits from two photos. Unfortunately, quite a bit of the moth was not in focus in either of the photos. I am still trying to figure out how to take photos of insects at night with the flash.)