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Periodical Cicadas |
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Learn about periodical cicadas; know for their unique long and prime-numbered life cycles (13 or 17 years), precisely timed mass emergences, and active choruses. Magicicada.org offers brood maps, pictures of different species, and a place to report your own periodical cicada sightings.
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http://magicicada.org/magicicada.php
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magicicada.org |
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Periodical cicadas (Magicicada spp.) are unique among cicadas (approx. 6000 species found worldwide). Periodical cicadas are unique in their combination of long, prime-numbered life cycles (13 or 17 years), precisely timed mass emergences, and active choruses. Periodical cicadas are found only in eastern North America. There are seven species -- four with 13-year life cycles and three with 17-year cycles. The three 17-year species are generally northern in distribution, while the 13-year species are generally southern and midwestern. The periodical cicadas can be divided into three species groups (-decim, -cassini, and -decula) with slight ecological differences. |
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Cicadas
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Periodical Cicadas
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