Paul Scharf Warren, 2009-08-04, Dennis Paulson's comment: It's sufficiently slender that I'm pretty sure it's Ischnura hastata, Citrine Forktail. I. verticalis is a more robust species. I'm judging that by the width of the eyes relative to the width of the thorax, definitely a higher ratio in hastata. Otherwise, they are somewhat similar-looking as mature females. In the mountains, E. Forktail would be much more common than Citrine. In the Coastal Plain, Eastern is relatively rare.