I've noticed a lot of these and small blue (Damselflies/Dragonflies) along the Salt River in Mesa, Arizona. Just happened to find this Rubyspot that wasn't afraid of anything and let me get really close.
I have got to put a pond in the backyard. Love the eyes and wings.
Brian,
Yes they are very cool to zoom way up on. They have tons of little interesting things on their face and body that I'm assuming have purposes haha.