A brood of trillions of periodical cicadas is poised to emerge in some states across the country this month.
The wild-nature, which last appeared above ground almost two decades ago, are known as “Brood X,” the “Big Brood,” or the Great Eastern Brood.
CICADAS LIVING UNDERGROUND FOR PAST 17 YEARS TO EMERGE IN THESE STATES THIS SUMMER
Brood X has reportedly already made its 2021 debut in Southern states, and there have been reports of sightings in us-regions, us-regions, us-regions, us-regions, us-regions and the washington-dc” target=”_blank”>District of Columbia<, us-regions, us-regions, us-regions, us-regions, us-regions, us-regions, us-regions, us-regions, us-regionsand us-regions will all be visited by singing cicadas.
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In recent years, ground temperatures have been warming to that temperature earlier due to environment, The Associated Press reports.
There are six species of periodical cicada in the Eastern U.S., according to CNET and three species in Brood X.
A cicada nymph moves in the grass, Sunday, May 2, 2021, in Frederick, Md. (AP Photo/Carolyn Kaster)
A U.S. Forest Service map shows Brood X concentrations in Maryland, Delaware, Pennsylvania, Indiana, Ohio, and eastern Tennessee.
With as many as 1.5 million cicadas per acre, the adult brood is above ground to mate, emerging at dark in an attempt to avoid predators. Notably, their mating calls can reach up to 100 decibels.
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After their two-to-four-week excursion, the adult cicadas die following intercourse and cicada eggs are deposited in tree branches where the larvae or “nymphs” then hatch and burrow into the soil.
The next generation will surface in 2038.
