.TYPE IS ACTUALLY Caring For Americans to all type of eyeglasses. On April 8th millions saw a complete solar energy eclipse. Lots of will certainly be less magnetized when, in the coming times, trillions of cicadas seem in the country's Midwest and also south-east. The throng will certainly be extraordinarily sizable given that two forms of the pest-- Family XIII and also Family XIX-- are arising simultaneously. The final time they appeared simultaneously was in 1803, when Thomas Jefferson was president. Why do the cicadas possess such an unusual life process?