The 17-year Cicada are due to emerge between mid April and June from Connecticut to Georgia. The big insects emerge when the ground is sixty-four degrees Fahrenheit. SciStarter has instructions on building a thermometer and how to track the emergence.
You can track them and report your findings on the WYNC website. http://project.wnyc.org/cicadas/
Have you lived through a Cicada emergence? Share your experience. – WNYC