Tibicen pruinosus emerging on Pine (~10:30 PM CDT)
W.H. Reynolds
(with M. Reynolds & his daughters B. & G. Reynolds)

There were dozens emerging between 10:00 & 11:00 PM CDT. By 12:00 midnight, only the shells were visible. Most of the adults had finished pumping up their wings and begun to migrate up the tree by 11:30.

Additional reference for T. pruinosus in nw. Alabama:
http://www.inaturalist.org/observations/189397

Tibicen pruinosus
http://bugguide.net/node/view/6967