These dragonflies are called Blue Dashers for a good reason and this is the only photo out of about ten that is worth posting. The quality of the only lateral shot I was able to obtain is likewise poor. But it's still possible to zoom in on the image and (just barely) make out identifiable features on the thorax and abdomen, and comparing the markings to other pictures on the Internet confirms that this is a male Pachydiplax longipennis.
