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Billions of cicadas are about to take to the skies. Here s what to expect Salon 4 hrs ago © Provided by Salon Cicadas After 17-years living below ground, billions of cicadas belonging to Brood X are beginning to emerge across much of the eastern United States. The cicadas shed their larval skin, spread their wings, and fly out to mate, making a tremendous noise in the process. Richard Ellis/Getty Images Doug Yanega studies insects for a living, yet he has repeatedly missed out on one of North America s most awe-inspiring entomological events: the septdecennial (meaning once every 17 years) emergence of a swarms of cicadas known as Brood X. 

United statesLong islandWest virginiaRichard ellis gettyDonald trumpDoug yanegaAtmospheric administrationNational oceanicUniversity of california riverside entomology research museumSalon cicadasNorth americaCalifornia riversideEntomology research museumEast coastஒன்றுபட்டது மாநிலங்களில்நீண்டது தீவு