Double Cicada Brood 2024 Wikipedia. A double brood of cicadas is expected to surface simultaneously this spring in the united states, something we haven't seen in more than two centuries. Brood xiii and brood xix.

This spring, two broods of cicadas will emerge in the midwest and the southeast, in their first dual appearance since 1803. 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.