Periodical Cicadas to Emerge in Illinois in 2024
Annual Cicadas, Periodical Cicadas Differ
While annual cicadas are a common sight in Illinois, periodical cicadas are less frequent. Periodical cicadas emerge every 13 or 17 years, depending on the brood. In 2024, two broods of periodical cicadas, Brood XIII and Brood XIX, will emerge in many parts of Illinois. Brood XIII will be the more concentrated in the northern part of the state, while Brood XIX will be more widespread.
Emergence Expected in May and June
The periodical cicadas are expected to emerge between mid-May and early June, though some may start emerging as early as late April. These cicadas will be active for several weeks, mating and laying eggs. The nymphs will then hatch and burrow underground, where they will spend the next 13 or 17 years feeding on tree roots.
While periodical cicadas can be a nuisance, they are also an important part of the ecosystem. Their emergence provides a food source for birds, bats, and other animals. The nymphs also aerate the soil and help to decompose organic matter.
Conclusion
The emergence of periodical cicadas in 2024 will be a significant event for Illinois. These insects will provide a unique opportunity to learn about the natural world and to appreciate the importance of all living things.
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