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Brood XIII of the 17-year cicada, which reputably has the largest emergence of cicadas by size known anywhere, and Brood XIX of the 13-year cicada, arguably the largest (by geographic extent) of all periodical cicada broods, were expected to emerge together in 2024 for the first time since 1803.
A pile of cicadas in Bloomington, Indiana in 2021. Entomologists are eager to study two broods of cicadas co-emerging this spring for the first time in more than 200 years (Courtesy of Katie Dana)
This map from the U.S. Department of Agriculture shows emergent cicada broods across a 16-year span from 2013 to 2029 — including the 2024 cicadas. USDA.
The life cycle of an annual cicada typically spans 2 to 5 years; they are "annual" only in the sense that members of the species reappear once a year. The name is used to distinguish them from periodical cicada species, which occur only in Eastern North America , are developmentally synchronized, and appear in great swarms every 13 or 17 years ...
Brood XXIII is only one of three still living 13-year cicada broods; the other two are Brood XIX (the "Great Southern Brood") and Brood XXII (the "Baton Rouge Brood"). Brood XXI (the "Floridian Brood") was a fourth 13-year brood that was last seen in 1870 in the Florida Panhandle and along the Alabama–Mississippi border. It is presumed ...
While the last cicada invasion hit the U.S. in the summer of 2004, they weren't supposed to emerge until 2021. Skip to main content. 24/7 Help. For premium support please call: 800-290 ...
The term periodical cicada is commonly used to refer to any of the seven species of the genus Magicicada of eastern North America, the 13- and 17-year cicadas. They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year.