Double Cicada Brood 2024 Wikipedia In India. Maps of two cicada broods, reunited after 221 years. States, marking a rare event not seen in 221 years and not anticipated until 2245.

Two broods, or groups of periodical cicadas, are emerging simultaneously for the first time in 200+ years (since 1803), and illinois is one of two states (the other being iowa) where both broods will be making an. This spring, two broods of cicadas will emerge in the midwest and the southeast, in their first dual appearance since 1803.