If you're feeling a little crazy because of the cicada swarms, you probably won't take pleasure in knowing that Tennessee is one of the few areas where both 13-year and 17-year cicadas are common. Or that scientists have identified fifteen different annual broods for the two varieties, thus assuring some cicada action almost every year. For this and more about the weird cicada lifecycle see this website from UT-Knoxville.
On the other hand, if you want to take advantage of this phenomenon, you'll be thrilled to learn that cicadas are eaten in many cultures and have been considered a delicacy for centuries. Apparently it's best to catch the newly hatched cicadas, which are then boiled briefly to "solidify their insides." Yum! See more edible bug recipes at this site from the University of Maryland.