Do you hear this noise?
If you’re in one of the 17 states in the Midwest and Southeast, it could be billions of periodical cicadas coming back up after years of being underground.
A total of 17 states are hosting this year’s cicada broods: the 13-year brood XIX located primarily in the Southeast and the 17-year brood XIII in the Midwest. Both broods have not emerged at the same time since 1803, making 2024 a rare double brood year.
Most of the cicadas are either above ground or working their way up, but regardless, this year’s emergence is in full swing.
Here’s where you can find both broods in the United States this year.
How long will the cicadas be there?Here’s When to Expect Brood XIX, XIII to Disappear
Cicada map 2024: find out where broods XIII and XIX are expected to emerge
Both broods of cicadas are expected to emerge in 17 combined states in the South and Midwest. They emerge once the ground eight inches underground reaches 64 degrees, beginning in many states in April and May and continuing until late June.
The two generations last emerged together in 1803, when Thomas Jefferson was president.
Where have the cicadas already come out in 2024?
Adult periodical cicadas of Brood Cincinnati, Ohio.
They have been spotted on the app in Alabama, Arkansas, Georgia, Illinois, Kentucky, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee and Virginia.
Brood XIII began emerging in Wisconsin, throughout the Chicago area and near Peoria, Illinois, according to the tracking service.
How long will cicadas stay on the surface?
The lifespan of cicadas depends on their brood and whether they are an annual or periodic species.
The two periodic broods this summer are brood XIX, which has a life cycle of 13 years, and brood XIII, which has a life cycle of 17 years.
Once male and female periodical cicadas have mated and the latter has laid eggs, the insects will die after spending only a few weeks above ground – between three and six weeks after they first emerge.
That means many of this year’s periodical cicadas are expected to die in June, although some could die in late May or July, depending on when they appeared.
Annual cicada nymphs stay underground for two to five years, according to the Missouri Department of Conservation. These cicadas are called “annuals” because some members of the species emerge each year as adults.
What is a brood?
According to the University of Connecticut, broods are classified as “all periodical cicadas of the same life cycle type that emerge in a given year.”
A cicada brood is made up of different insect species that have distinct evolutionary histories. These species may have joined the brood at different times or from different sources. These different species are grouped together under the brood because they are found in the same region and emerge on a common schedule.
Why do cicadas make so much noise?
We will have to thank the male cicadas for all these cries. According to Britannica, male cicadas synchronize their calls and produce congregational songs, which establish a territory and attract females. There is also a courtship call they make before mating.
The 13- and 17-year periodical cicadas are the noisiest, in part because of the large number of them emerging at once.
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News Source : www.usatoday.com
