Cicada Broods 2024 Illinois. While the northern illinois and great southern broods haven’t been spotted in the same year since 1803, emergences involving two of the roughly 15 broods of. For the first time in 221 years, periodical cicada brood xiii and brood xix will emerge at the same time!
“historically speaking, 2024 is a big year for periodical cicadas in illinois,” says ken johnson, extension horticulture educator serving calhoun, cass, greene,. For the first time in 221 years, periodical cicada brood xiii and brood xix will emerge at the same time!
