Brood X is expected to emerge in more than 200 counties across the Mid-Atlantic, Midwest and South this year. It is one of 15 periodical cicada broods found in the U.S. Mich. N.Y. Ill. Pa. Ohio N.J. Ind. They’re full.”ADThe sacrifice of a few thousand lives won’t faze Brood X. But in reality Brood X is composed of three species — Magicicada septendecim, Magicicada cassini and Magicicada septendecula. Twelve broods, like Brood X, emerge every 17 years, and three every 13 years.

Source: Washington Post March 09, 2021 12:01 UTC