Hello, Vesper Bluet (Enallagma versperum)!
When I saw the bright yellow thorax and blue final segments on the abdomen, I was puzzled. After poring over my books and Odonata Central, I thought perhaps the light was so bad and my photos so poor that I was mistaken in my initial impression of Vesper. Orange Bluet, I decided.
I posted these to my Southeastern Odes group on Facebook and asked what others thought. Their response was astonishing.
Vesper Bluet at 11:30 in the morning! That makes damselfly species number 28!