Pennsylvania Cicada Brood Map 2024. 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. Trillions of cicadas will emerge in 2024.
A rare burst of billions of cicadas will rewire our ecosystems for years to come. Brood xix (19) periodical cicadas emerged in the spring of 2024 in alabama, arkansas, georgia, illinois, indiana, kentucky, louisiana, missouri, mississippi, north.
