2024 Cicadas Brood. The broods, or families of cicadas, that are emerging this year, along with the annual ones, are brood xix and brood xiii — which haven’t emerged at the same time in 221 years. This year's cicada emergence was a double whammy of insects, with two groups of periodical cicadas that only come out of the ground.
Climate change could be impacting emergence of cicadas 03:12. This year, two broods of flying cicadas have appeared at the same time, and it is the first time they have emerged simultaneously since 1803.