.TYPE IS ACTUALLY Caring For Americans to all type of eyeglasses. On April 8th thousands witnessed a total solar eclipse. Several will be actually less charmed when, in the coming days, trillions of cicadas seem in the country's Midwest and south-east. The throng will be actually abnormally huge considering that 2 types of the pest-- Brood XIII as well as Brood XIX-- are actually developing concurrently. The last time they showed up simultaneously resided in 1803, when Thomas Jefferson was president. Why perform the cicadas have such an unusual life process?