Trillions of periodical cicadas are expected to emerge from the ground this spring, producing their distinctive buzzing sounds and leaving behind molted exoskeletons. These cicadas, known for their long underground lifespans, typically emerge once the soil reaches a temperature of 64 degrees. The emergence is expected to take place in mid-May, with both the 13-year and 17-year cicadas making an appearance in unprecedented numbers.
In 2024, the 13-year cicadas, known as Brood XIX, will emerge in Georgia and the Southeast, while the 17-year cicadas, known as Brood XIII, will be seen in Illinois. This rare occurrence marks the first time since 1803 that these two broods will emerge simultaneously, with the next time not expected until 2037. The overlap of these two broods has been dubbed “cicada-geddon,” though an even larger event is predicted for 2076 when the two largest broods, XIX and XIV, will emerge together.
Experts estimate that hundreds of trillions, or even quadrillions, of cicadas will emerge during this event, with an average of 1 million per acre over millions of acres. Some cicadas may be affected by a fungal pathogen called Massospora cicadina, which can make them hyper-sexual, turning them into “zombie cicadas” with visible signs of infection. It is still unclear how this fungus might impact other wildlife, animals, or humans.
Maps from the U.S. Department of Agriculture show where in the U.S. the dual brood emergence will be visible, primarily in parts of Illinois, Iowa, Kentucky, Missouri, Arkansas, Tennessee, Mississippi, Alabama, Georgia, South Carolina, North Carolina, and Virginia. This natural phenomenon offers a unique opportunity to witness the impressive emergence of cicadas on a large scale, providing valuable insights into their life cycles and behaviors.
While the emergence of trillions of cicadas may seem alarming or overwhelming, it is a natural and important event in the life cycle of these insects. Despite the potential presence of fungal pathogens affecting some individuals, the overall impact of these cicadas on the environment is expected to be relatively benign. The sight and sounds of cicadas emerging en masse can be a fascinating and educational experience for those who have the opportunity to witness this unique natural phenomenon.
In addition to the cicada emergence, other upcoming events to look out for include a 2024 eclipse and a 60 Minutes segment on a thief who melted down Yogi Berra World Series rings. As America prepares for these awe-inspiring and intriguing events, researchers and enthusiasts alike eagerly await the arrival of trillions of cicadas as they emerge from the ground and take to the skies in search of mates and new life.
