Cicada 2024 Canada Pr. This spring, two broods of cicadas will emerge in the midwest and the southeast, in their first dual appearance since 1803. There are seven species of cicadas in north america that are periodical, meaning they spend more than 99 per cent of their lives dwelling underground as nymphs before.
The arrival of brood xix and brood xiii will send shockwaves through forest. Cicadas count years, likely using the flow of tree sap.