Illinois Cicada Brood Map 2025. Shows some of the highest sightings have been reported in suburbs west of chicago, particularly near the. The northern illinois brood, or brood xiii, will be most seen in parts of northern illinois and indiana, and possibly even in wisconsin, iowa and parts of ohio.
Cicadas illinois 2025 schedule map niki. The northern illinois brood, or brood xiii, will be most seen in parts of northern illinois and indiana, and possibly even in wisconsin, iowa and parts of ohio.