Periodical Cicadas

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Brood XIX (13-year)

The Great Southern Brood

Brood XIX is the largest (by geographical extent) brood of 13-year cicadas. This brood is also notable for including the species M. neotredecim and exhibiting a striking pattern of reproductive character displacement between M. neotredecim and M. tredecim (Cooley et al. 2001; Marshall and Cooley 2000; Simon et al. 2000).

Brown symbols on the map above were generated from verified records in the Cicada Central Database on 20 January 2013.
Blue symbols on the map are based on Marlatt (1923).

Gold symbols are based on Simon (1988); smaller symbols are records with a lower degree of certainty.

These records have not been field checked.

A project is currently underway to make new maps of periodical cicada broods. See the Magicicada mapping project homepage and the Geospatial Data Clearinghouse.
Literature:
Cooley, J. R., C. Simon, D. C. Marshall, K. Slon, and C. Ehrhardt. 2001. Allochronic speciation, secondary contact, and reproductive character displacement in periodical cicadas (Hemiptera: Magicicada spp.): genetic, morphological, and behavioural evidence. Molecular Ecology 10:661-671.
Marlatt, C. 1923. The Periodical Cicada. United States Department of Agriculture, Bureau of Entomology Bulletin 71.
Marshall, D. C., and J. R. Cooley. 2000. Reproductive Character Displacement and Speciation in Periodical Cicadas, with Description of a New Species, 13-Year Magicicada neotredecim. Evolution 54:1313-1325.
Simon, C., J. Tang, S. Dalwadi, G. Staley, J. Deniega, and T. R. Unnasch. 2000. Genetic Evidence for Assortative Mating between 13-Year Cicadas and Sympatric "17-Year Cicadas with 13-Year Life Cycles" Provides Support for Allochronic Speciation. Evolution 54:1326-1336.
Simon, C. 1988. Evolution of 13- and 17-year periodical cicadas. Bulletin of the Entomological Society of America 34:163-176.
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