(Walsh and Riley, 1868)
Magicicada tredecim is a 13-year species of periodical cicada, closely related to the newly discovered 13-year species Magicicada neotredecim, from which it differs in its in male song pitch, female song pitch preferences, abdomen color, and mitochondrial DNA. Both M. tredecim and M. neotredecim are closely related to the 17-year species M. septendecim, which was identified by Linnaeus in 1758; these three species are often grouped together under the name decim periodical cicadas.
Like other species included in its genus, M. tredicim has reddish eyes and wing veins. Its dorsal thorax is black. The underside of the abdomen of M. tredecim is light orange or caramel colored, lacking the dark bands seen in M. neotredicim and M. septendecim.
Habitat, distribution, and cicada "broods"
Magicicada species occur across the southeastern United States. M. tredecim was the first to be described of the four species with a 13-year lifecycle. It has been observed in all of the three extant broods of 13-year cicadas: Brood XIX, Brood XXII, and Brood XXIII.
- "Periodical Cicada Page". University of Michigan. Retrieved 10 June 2011.
- "Magicicada neotredecim Marshall and Cooley 2000". National Geographic Society. Retrieved 10 June 2011.
- Alexander, Richard D; Thomas E. Moore (1962). "The Evolutionary Relationships of 17-Year and 13-Year Cicadas, and Three New Species (Homoptera, Cicadidae, Magicicada)" (PDF). U Michigan Museum of Zoology. Retrieved 9 June 2011.
- "Magicicada tredecim (Walsh and Riley 1868)". National Geographic Society. Retrieved 12 June 2011.