Cicadas Invade Illinois: A Historic Emergence

Broods XIII and XIX Set to Emerge

After the celestial spectacle of the solar eclipse, Illinois prepares for another extraordinary natural phenomenon: the emergence of periodical cicadas. This year, Broods XIII and XIX will grace the state with their 13 and 17-year cycles, respectively, making Illinois the epicenter of cicada activity in the United States.

Map of Expected Cicada Emergence

As Brood XIII emerges in the northern half of the state and Brood XIX blankets the southern half, Illinois will be a haven for these remarkable insects. A map of the expected emergence areas is available to guide enthusiasts and curious observers alike.

A Historical Convergence

Cicadas, known as Marlatt's Roman numerals, have intrigued scientists for centuries. C.L. Marlatt's groundbreaking research led to the identification of 13 distinct groups of 13- and 17-year periodical cicadas. This year, the convergence of Broods XIII and XIX will create a historic and unforgettable experience.

Get Ready for a Chorus of Nature

As the sun sets, the air will fill with the distinctive chorus of cicadas. Their deafening calls, a testament to their remarkable life cycle, will echo through the Illinois landscape. Embrace this rare opportunity to witness the wonders of the natural world and marvel at the intricate beauty of these captivating creatures.