Officially, 2024 belongs to Cicada.
This spring, in a rare synchronized phenomenon that last occurred in 1803, swarms of two different cicadas, one with a 13-year cycle and two with a 17-year cycle, emerge from the ground at the same time.
Billions of winged insects emerge from the Midwest to the Southeast, beginning in late April in some regions and performing noisy mating rituals that tend to fascinate and disgust in equal measure.
This year’s twin feathering is a once-in-a-lifetime event. Although a particular 13-year offspring and his 17-year offspring may appear at the same time, the cycles of a particular pair align only once in his 221 years. Additionally, this year’s groups of cicadas, known as Brood XIII and Brood XIX, happen to have habitats adjacent to each other and narrowly overlapping in central Illinois.
“The last time these two brothers were on the scene, Thomas Jefferson was president, so is that unusual? Yes.” said Gene Kritsky, author of “A Tale of Two Broods,” a book about this year’s double broods.
After 2024, Brood XIII and Brood XIX cicadas will not synchronize their emergence for another 221 years.
These types of cicadas are regular insects that spend most of their lives underground feeding on tree roots. After 13 or 17 years, depending on the mate, the cicada tunnels to the surface and matures, noisily searching for a mate for a month.
Cicadas typically appear on the surface in the spring when soil temperatures reach about 64 degrees Fahrenheit.
The Blued XIII cicada appears in the Midwest, primarily in Illinois, but has also spread to Wisconsin, Ohio, and Iowa. Stage XIX cicadas have been sighted in a much wider geographic area, including Missouri, Illinois, Louisiana, North Carolina, Virginia, and Maryland.
When these insects emerge, they occur in large numbers. And they are not quiet at all in the mating frenzy.
The insects are known to emit a high-pitched buzz, or mating song, that can reach up to 100 decibels, which is about the same as a motorcycle or a jackhammer.
The insects themselves are harmless to humans, but billions of insects emerge from the ground, making the cicada noisy for several weeks during its lifespan. When that happens, the ground can also be littered with large amounts of dead insects.
In 2019 “ semi-safari This will allow citizen scientists to report cicada sightings from their location.
“I’ve already spoken to six people who want to take a vacation and come to the area for the cicadas,” he said. “In years past, I’ve helped people plan vacations that depart while the cicadas are singing.”
In parts of the Southeast where the Blued XIX cicada occurs, the insects may begin to emerge from underground in late April.
Then, as temperatures warm across the Southeast and Midwest, more cicadas will show up throughout May and June.
When the insect reaches the surface, it sheds its nymph exoskeleton and spreads its wings. It usually takes a few more days for adult skin to harden.
The mating ritual itself is hectic, with cicadas taking only a few weeks to find a mate and lay eggs. This entire process takes approximately 6 weeks.
“By July 1st, they’ll be gone,” Kritsky said.
But while cicadas are on the ground, scientists are keen to track where they appear. Kritsky himself plans to study cicadas in the Chicago area, and hopes people in the Midwest and Southeast will report sightings using the Cicada Safari app.
Mapping insect ranges helps researchers understand how cicadas adapt and change between cycles. During this year’s double emergence, scientists are also interested in whether mating will occur between two different chicks.
But beyond science, Kritsky said this year is also a chance to experience a once-in-a-lifetime phenomenon.
“This year marks 50 years since I started researching cicadas,” he says. “Many of us will be in the borderlands of Illinois, driving back and forth, meeting for coffee and eating pie.”
Source: www.nbcnews.com
