I think sperata, but frankly I forgot how to differentiate it from marutha
Elizabeth, Brent, Brian, and I put up the moth lights here and spotted more insects than I've ever seen before -- there were swarms of aquatic beetles, mayflies, and many other bugs. :) It was great, but it was also pretty hard to get a good picture. :-/
I'll work on ID's for these critters later with the discovery life moth guide and some other resources...