Cicada 2024 Brood. The brood chart features the names of the broods (roman numerals), their life cycle length when they will emerge next, which states they’ll emerge in, links to. The northern illinois brood spends 17 years underground before surfacing and is known as brood xiii, while the great southern brood, or brood xix, lives underground for 13 years.

An animated look at what will happen in the upcoming emergence of brood xix and brood xiii, when more than a trillion cicadas will surface. The 2024 periodical cicada emergence.