Flying along the border of mowed grass and tall vegetation (~3ft) that surrounds a creek. Flashing pattern a greenish crescendo ending abruptly. 70F; humidity almost 47%, and it was about 13mm long. Best guess Photuris lucicrescens- the flash pattern matches the description perfectly.
The insect, not the plant
About 20 individuals absolutely DESTROYING some curly dock.
Any explanation for white tail, fur? Appeared to be healthy.