This spring, Americans are bracing for the return of a natural phenomenon dubbed “cicada-geddon.” Brood XIV, one of the largest broods of periodical cicadas, is set to emerge in states including Ohio, Kentucky, Tennessee, Georgia, West Virginia, Virginia, North Carolina, Pennsylvania, New York, and Massachusetts, according to the University of Connecticut.
Periodical cicadas, known for their deafening buzz and vibrant red eyes, follow a unique lifecycle, surfacing every 13 or 17 years in massive numbers. These insects spend the majority of their lives underground, emerging for a brief, noisy existence before dying off within weeks.
What to expect: The cicada lifecycle
Periodical cicada juveniles, or nymphs, live underground for over a decade, feeding on sap from tree roots and growing steadily. When soil temperatures reach approximately 64°F at a depth of 7–8 inches, they begin their synchronized emergence.
Once above ground, these cicadas shed their exoskeletons, mate, and lay eggs in tree branches. The adults die soon after, leaving behind the next generation to start the cycle anew.
Cicada impact: Annoying but harmless
Despite their startling numbers and raucous mating calls, cicadas pose no threat to humans. They neither bite nor sting, and they are not known to transmit diseases. When approached, most cicadas will simply fly away, although males may emit a loud defensive buzz when handled.
Previous cicada surges
In 2024, trillions of cicadas from Broods XIX and XIII co-emerged across parts of the eastern U.S., marking the first simultaneous appearance of a 13-year and 17-year brood since 2015. Brood XIV’s emergence this year will be significant due to its size and geographic range.
An unforgettable natural event
The return of Brood XIV offers an awe-inspiring spectacle of nature, albeit one that can disrupt daily life with its ear-splitting noise and sheer volume.
For residents in affected areas, the phenomenon serves as both a reminder of nature’s resilience and an opportunity to witness a rare ecological event. Stay tuned for updates as Brood XIV begins its ascent from the underground this spring.
