Cicadas are set to swarm the area from northern Georgia to Washington, D.C. this May after 17 years of living below ground. Called periodical cicadas, the thumb-sized insects emerge every 17 years and fly around in a noisy, mating frenzy before dying weeks later, littering the area with crunchy shells. Mistakenly called locusts by early settlers, they are distinguished by their beady red eyes. An adult cicada is shown. (Dept. Of Agriculture via Reuters)
