.TYPE IS ACTUALLY Curing Americans to all sort of eyeglasses. On April 8th millions observed a total solar eclipse. Lots of will definitely be actually less charmed when, in the coming times, trillions of cicadas seem in the nation's Midwest and also south-east. The flock will definitely be actually uncommonly huge due to the fact that 2 forms of the pest-- Family XIII as well as Brood XIX-- are actually arising at the same time. The last opportunity they appeared concurrently was in 1803, when Thomas Jefferson was actually head of state. Why do the cicadas have such an uncommon life process?