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17-year cicada
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Images & Videos
Diagram showing auditory mechanisms in insects, including labeled illustrations of a scolophore organ, the mosquito ear with antenna shaft and scolophores, the cicada ear with auditory capsule and tympanic membrane, and the grasshopper ear with sensory body and tympanic membrane. Map of the eastern United States displaying color-coded regions that indicate the next scheduled emergence years for various cicada broods. Each color represents a specific brood and year, with a legend on the right listing both 17-year and 13-year cicada broods and their upcoming emergence dates. The regions are scattered across states from the Midwest to the East Coast and South.
Close-up of two 17-year cicadas with black bodies and orange eyes, perched on a branch, with a blurred green and brown background.
Why do some cicadas appear every 17 years?
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17-year cicada: Media

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Videos

How Do Cicadas Know When to Go Aboveground?
Learn more about the life cycle of the 17-year cicada.
Video: Encyclopædia Britannica, Inc.
Why do some cicadas appear every 17 years?
And how much buzzing will you hear this summer?
Video: Encyclopædia Britannica, Inc.

Images

auditory mechanisms in insects
Auditory mechanisms in insects. (Left) A scolophore organ. (Top right) The mosquito...
Encyclopædia Britannica, Inc.
map of emergence years for cicada broods in the eastern United States
Map of the emergence years for cicada broods in the eastern United States.
Encyclopædia Britannica, Inc./Kenny Chmielewski