US Billions of cicadas will emerge this year-Double-brood event

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Billions of cicadas will emerge in the U.S. this year in a rare double-brood event


This spring, two different broods of cicadas — one that lives on a 13-year cycle and the other that lives on a 17-year cycle — will emerge at the same time from underground in a rare, synchronized event that last occurred in 1803.

Billions of the winged insects will make an appearance across the Midwest and the Southeast, beginning in some places in late April, for a raucous mating ritual that tends to inspire fascination and annoyance in equal measure.

This year’s dual emergence is a once-in-a-lifetime event. While any given 13-year brood and 17-year brood can occasionally emerge at the same time, each specific pair will see their cycles aligned only once every 221 years. What’s more, this year’s cicada groups, known as Brood XIII and Brood XIX, happened to make their homes adjacent to one another, with a narrow overlap in central Illinois.

“Thomas Jefferson was president the last time these two broods came out, so is it rare? Yes,” said Gene Kritsky, an entomologist at Mount St. Joseph
 
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Saturday Night Live:
Billions of cicadas will be released into the US.
And Biden is just letting them in.
 
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New Update:

Cicadas are so noisy in a South Carolina county that residents are calling the police​




NEWBERRY, S.C. (AP) — Emerging cicadas are so loud in one South Carolina county that residents are calling the sheriff's office asking why they can hear sirens or a loud roar.

The nosiest cicadas were moving around the county of about 38,000 people, about 40 miles (65 kilometers) northwest of Columbia, prompting calls from different locations as Tuesday wore on, Foster said.

Trillions of red-eyed periodical cicadas are emerging from underground in the eastern U.S. this month. The broods emerging are on 13 or 17 year cycles.

Their collective songs can be as loud as jet engines and scientists who study them often wear earmuffs to protect their hearing.
 
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