Brood I

The Shenandoah Valley Brood

Brood I is among the smallest broods of 17-year cicadas. The brood is found in the Shenandoah Valley near the Blue Ridge Mountains, with sparse populations along the Blue Ridge Parkway and on Massanutten Mountain.  Brood I has disjunct populations on Long Island and near Bristol VA/Bristol TN.

Brood I
Brown symbols are verified records in the Database in February 2017. Gold are from Simon (1988). Blue symbols are from Marlatt (1923). Smaller symbols are records with a lower degree of certainty, and question marks or open symbols (on top of other symbols or alone) represent records that are considered spurious. Symbols are in layered in the order Database, Simon, Marlatt, and symbols in the upper layers may obscure symbols in lower layers.

Literature

Cooley, J. R. 2015. The distribution of periodical cicada (Magicicada) Brood I in 2012, with previously unreported disjunct populations (Hemiptera: Cicadidae). The American Entomologist 61:52-57.

Marlatt, C. L. 1923. The Periodical Cicada. United States Department of Agriculture, Bureau of Entomology Bulletin 71:1-183.

Simon, C. and Lloyd, M. 1982. Disjunct synchronic population of 17-year periodical cicadas: Relicts or evidence of polyphyly? Journal of the New York Entomological Society, 110, 275-301.

Simon, C. 1988. Evolution of 13- and 17-year periodical cicadas. Bulletin of the Entomological Society of America 34:163-176.