Brood XIII periodical cicada, photographed May 19, 2024, in Illinois. (Patty Wetli / WTTW News)

Periodical cicadas use trees’ lifecycles to “count” years. But when trees get duped by climate change, so do the insects. Could it lead to new broods?

A cicada specimen. (USGS Bee Inventory and Monitoring Lab)
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The Illinois Department of Natural Resources has announced its plan to host a cicada-themed art show during the Illinois State Fair and is seeking entries from the public, looking for interpretations of cicadas or broods.

Cicadas mating. (AFPMB / Flickr Creative Commons Public Domain)

In 2024, Illinois can’t be beat for periodical cicadas. Here’s everything you need to know about these fascinating creatures, and what to expect between now and July.

The Forest Preserve District of DuPage County’s video has humans act out periodical cicadas’ lifecycle. (Screenshot)

“Nature education is a big part of what we do here, but you gotta find a way to make it interesting so that people actually watch it,” said Jonathan Mullen, part of the team behind the viral video.

Brood XIX periodical cicadas have showed up in force in Alabama, photographed April 30, 2024. (Alabama Extension / Flickr Creative Commons)

Cicada Watch 2024 is reaching fever pitch in the Chicago region, where Brood XIII periodical cicadas are expected to burst from the ground by the millions, any day now. Here’s what’s in store.

A periodical cicada nymph, flushed from its tunnel is pictured on April 28, 2024, in Cook County’s Palos preserve system. (Patty Wetli / WTTW News)

It’s not uncommon for some cicadas to jump the gun, experts said. Recent sightings, especially after last weekend’s rains, aren’t a sign that the mass emergence has started. 

A graphic that says "The Return of the Cicadas." (WTTW News)

In case you haven’t heard, the cicadas are coming, and things are about to get loud. WTTW News explains.

Hordes of female periodical cicadas will be laying their eggs in small tree branches. (Armed Forces Pest Management Board / Flickr Creative Commons)

Young trees could be vulnerable to damage from the emergence of millions of periodical cicadas in Illinois this spring. Here are tips on how to protect your trees.

Adult spotted lanternfly. (U.S. Department of Agriculture)

The insect was found in the Fuller Park neighborhood of Chicago, according to a spokesman for the Illinois Department of Agriculture.

A colony of ants formed their own life raft, seen in Hickory Creek Preserve in Will County. (Courtesy of Meagan Crandall)

If their nests become waterlogged, ants will evacuate and form a waterproof ball that floats on the surface until the waters recede.

Bruno de Medeiros, assistant curator of insects, with just a handful of the beetles in the Field Museum’s collection. (Patty Wetli / WTTW News)

Beetles, and weevils in particular, are thought of as destructive pests. Bruno de Medeiros, assistant curator of insects at the Field Museum, is upending those preconceptions.

A black bear, photographed at Shenandoah National Park in Virginia. (Shenandoah National Park / National Park Service)

A black bear was caught on video running through the parking lot of a Gurnee daycare. Wildlife officials confirmed the sighting as the real deal.

A bulldozer slices through Bell Bowl Prairie, March 9, 2023. (Courtesy of Jessie Mermel)

Bell Bowl Prairie was bulldozed Thursday morning after an 18-month fight to save the ancient prairie remnant from destruction by Rockford Airport, which is carving out a roadway for an expansion of its cargo operations.

A freshly molted cicada, near an exoskeleton. (U.S. Fish and Wildlife Service Midwest Region / Flickr Creative Commons)

What's that you say? Cicadas have been uncommonly loud all day long? There's likely a simple explanation for the sustained volume.

A green sweat bee is just one of the pollinators Chicagoans might spot in their local parks. (Patty Wetli / WTTW News)

The Chicago Park District is joining a national community science project designed to raise awareness of all the bees, butterflies, beetles, moths and wasps that rely on urban green spaces for food and shelter.

A spongy moth caterpillar. (Feliciano Moya Lopez / Pixabay)

Several sites in northeastern Illinois — including Waterfall Glen, Des Plaines Riverway, Hidden Lake and Wood Ridge forest preserves — will be sprayed with fake pheromones to confuse spongy moth males and disrupt mating.