Obviously I need to get at least one more home reference for insects, one which gives me a better handle on beetles, because in going back through my books here at home, only one showed any flea beetle species at all. None of them showed this guy, despite his incredibly good looks. (Yes, I am trying to justify my inability to identify this beetle, at least to myself!)
Hmmm, an excuse to get another book. Isn't solving mysteries fun?!