Based on antehumeral thoracic bands.
looks like she caught one of the Sweat Bees from my front yard
Mating pair periodically dipping down to lay eggs.
We watched a male patrolling over a female ovipositing in the lake, until she was snatched up by a Common Green Darner and carried off to the bushes to be eaten head-first!
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in the world. It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae. Even if these are excluded (as Silsby does), there still remains a family of over 1000 species. With nearly worldwide distribution, these are almost certainly the most often seen of all dragonflies.