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.

Billions of cicadas will emerge in the U.S. this year in a rare double-brood event
This year's dual emergence is a rare, synchronized event that last occurred in 1803.
IT'S GOING TO BE SO LOUD!