Are Cicadas Coming Back In 2024. The periodical cicadas are smaller, around an inch and a quarter long at their largest, and the annual cicadas are around 1.5 times the size of that, according to. Where will cicadas be in 2024?

Adult periodical cicadas from brood xix are now completing its emergence as the brood is out in full force in states. Trillions of periodical cicadas are already.