Broods XIX, XIII spotted; see US map, sightings


2024 is a big year for Illinois. This year, the Prairie State is one of two states where both broods of periodical cicadas are appearing in a rare double-breeding event.

Trillions of 13- and 17-year cicadas, part of Brood XIX and Brood XIII, are waiting for the right conditions to emerge in Illinois and over a dozen other states this year. Once above ground, the cicadas feed, mate and die, while the next generation then goes underground to start the cycle again. And although they are large and loud, cicadas pose no threat to people or pets.

Ready or not, the cicadas Brood XIX and Brood

Here's where to find them.

Cicada map 2024: See where breeding cicadas of genera XIX and XIII are emerging in the United States

What should we know about cicadas? We asked an expert.

When do cicadas appear in Illinois?

According to Cicada Mania, the insects begin to hatch when the ground 8 inches below the ground reaches a temperature of 64 degrees and are often triggered by a warm rain. This year, Illinois will see both cicadas in double brood: broods XIX and XIII.

According to Cicada Safari, a crowdsourcing cicada tracking app from Mount St. Joseph University in Cincinnati, Ohio, both broods were spotted above ground in Illinois.

Where in Illinois have cicadas been reported?

According to Cicada Safari, cicadas have already been spotted in some locations in Illinois. According to the app, Brood XIII has begun appearing near Peoria, Illinois, in the central part of the state.

The other Illinois brood, brood XIX, has been seen in large numbers in southern Illinois near Springfield, Champaign and in the St. Louis area along the Illinois-Missouri border.

The Cicada Safari app allows users to submit images and videos of cicadas in their area, creating an interactive map that tracks the species as they emerge this year.

What cicada broods are there in Illinois?

Illinois receives a visit from the two broods emerging this year: Brood XIX and Brood XIII.

Brood XIX last hatched in 2011 and is expected to reappear in 2037 after 2024. Brood XIII last hatched in 2007 and will appear again after this year in 2041.

In addition to Illinois, Brood XIX will also be found in the following states this year: Alabama, Arkansas, Georgia, Iowa, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina and Tennessee.

Brood XIII is also found in Illinois, Indiana, Iowa, Michigan and Wisconsin.


When will cicadas arrive in 2024? What you can expect to see and hear.

Brood XIII and Brood XIX cicadas will only live above ground for about five weeks in 2024. Here's what you can expect.

Cicada Map 2024: See where broods XIII and XIX will appear

The two broods of cicadas will appear in a total of 17 states in the Southeast and Midwest, with Illinois and Iowa expected to host both.

What's so special about the two broods coming out at the same time?

While both annual and periodical cicadas emerge in different areas each year, it is rare for two different broods to emerge at the same time.

Broods XIX and XIII last emerged together 221 years ago, in 1803, when Thomas Jefferson was president and there were only 17 states in the Union. After this year, they are not expected to appear at the same time again until the year 2245.

Anna Harden

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