Northern Illinois 17 Year Cicadas 2024. For the first time since 1803, two broods of cicadas are emerging simultaneously near illinois state university’s campus: The northern illinois brood of cicadas have been burrowed in kankakee sands' sandy soils for 17 years.
Second, there are periodical cicadas that emerge every 13 years in the southern half of illinois and every. The northern illinois brood, or brood xiii, is.