Known for their pitchy, 100-decibel song, the red-eyed insects have generated buzz on social media over the last couple of weeks.
With ground temperatures above 64 degrees Fahrenheit – a necessary condition for their emergence – the largely harmless bugs took to city streets, sides of buildings, chainlink fences and parks after 17 years underground.
"The cicadas have arrived on Capitol Hill!" The Hill's Senior Staff Writer Scott Wong exclaimed on Twitter, alongside a video of one of the cicadas crawling on a building in the area.
"I'm aware there are much bigger issues in the world, but I think it's important for outsiders to better grasp the cicada situation in the DC-area," Georgetown University's Callahan Family Professor of Computer Science Micah Sherr tweeted on Thursday.
"You cannot go for a walk outside without feeling the crunch of them under your feet," Sherr said.
Fifteen states will witness the historic lovefest – the cicadas' sound is actually the males’ mating call – including West Virginia, North Carolina, Pennsylvania, Ohio, Michigan, Illinois, Indiana, Kentucky, Georgia, Tennessee and allegedly New Jersey and New York where cicadas have been either extremely elusive, late, or extinct.
And yet, Brood X's time is fleeting above ground.
After a two-to-four-week jaunt, emerging and mating in order to deposit eggs in tree branches, the adult cicadas will perish.
The bugs are expected to be gone by around the Fourth of July, after which the eggs will hatch and nymph cicadas will tumble to the ground and burrow beneath the soil.