17-year-cicada
Guides
Magicicada cassinii
Cassin's periodical cicada, dwarf periodical cicada
Magicicada cassinii is one of three species of 17-year periodical cicadas endemic to eastern North America. Adults emerge synchronously every 17 years in massive broods, with males producing distinctive calling songs peaking at 4-7 kHz. The species is morphologically indistinguishable from the 13-year Magicicada tredecassini, and the two are collectively referred to as 'cassini-type' periodical cicadas. Males are notable for their ability to synchronize courting behavior, creating choruses of tens of thousands of individuals.
Magicicada septendecim
Pharaoh cicada, 17-year locust, Decim periodical cicada
Magicicada septendecim is the largest and most northern species of 17-year periodical cicada, native to eastern North America. Adults emerge in massive synchronized broods after 17 years underground as nymphs feeding on tree root xylem. The species is distinguished by broad orange stripes on the underside of the abdomen, orange patches on the thorax, reddish eyes and wing veins, and a black dorsal thorax. Males produce a high-pitched mating call described as "weeeee-whoa" or "Pharaoh." Together with the 13-year species M. neotredecim and M. tredecim, it forms the "decim" group of periodical cicadas.
Magicicada septendecula
Decula Periodical Cicada
Magicicada septendecula is one of three species of 17-year periodical cicadas endemic to the eastern United States. It is typically the rarest of the three species in mixed-species populations and exhibits stronger habitat specificity than its congeners. The species prefers upland woodland habitats dominated by hickories and walnuts, particularly Carya glabra (pignut hickory), and shows a strong association with Juglandaceae host trees. First described in 1962, it has been recorded from Connecticut southward through the eastern states, with the northeastern-most record from Totoket Mountain in North Branford, Connecticut in 2013. M. septendecula is distinguished from M. septendecim by its smaller body size and hind tibial length (less than 6.3 mm versus 6.3 mm or greater). The species exhibits greater susceptibility to delayed emergence compared to other Magicicada species, which may contribute to its comparative rarity.
Neotibicen canicularis
dog-day cicada, dog-day harvestfly, heatbug, Northern Dog-day Cicada
Neotibicen canicularis is an annual cicada species found across much of North America, commonly known as the dog-day cicada or dog-day harvestfly. Unlike periodical cicadas that emerge in synchronized broods every 13 or 17 years, this species appears every summer, though individuals require several years to develop underground. Adults are active during the hot midsummer period traditionally called the "dog days." The species has been documented as a host for multiple flesh fly parasitoids in the family Sarcophagidae, including several first-record associations.
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