Why Are Cicadas Coming In 2024. An animated look at what will happen in the upcoming emergence of brood xix and brood xiii, when more than a trillion cicadas will surface. Updated july 23, 2024 · 5.

In the midwest and southeastern us, trillions of cicadas from two broods are set to emerge in a rare synchronized event. That’s because 2024 will see two separate batches of periodical cicadas emerge en masse, spread across much of the eastern half of the u.s.