A picture I took 4 years ago during the 2011 — 13 Year Locust Brood emergence in Eastern Missouri; once the Locust emerge they may become the main diet for almost all birds for the summer, as here:
Brood XXIII, the Lower Mississippi Valley brood, will emerge in Louisiana, Mississippi, Arkansas, Tennessee, Missouri, Kentucky, Illinois, and Indiana, in the spring of 2015.
The cicada species that will emerge are Magicicada tredecim (Walsh and Riley, 1868); Magicicada neotredecim Marshall and Cooley, 2000; Magicicada tredecassini Alexander and Moore, 1962; and Magicicada tredecula Alexander and Moore, 1962. These periodical cicadas have a 13-year life cycle. The last time they emerged was 2002. According to John Cooley of Magicicada.org, Giant City State Park, Illinois is a good place to observe both M. tredecim and M. neotredecim.
Back in 2002, the emergence began in the last week of April, 2002, and ended the beginning of July. You can read what people said about them back in April, May, and June of 2002.
Here’s where folks reported the cicadas to Cicada Mania in 2002:
Arkansas: Bayou Deview Wildlife Management Area, Poinsett County, Devalls Bluff, Harrisburg, Holland Bottoms, Jacksonville, Jonesboro, Knox Co., Lake Hogue, Lake Poinsett State Park, Little Rock and Wynne.
Tennessee: Atoka, Benton, Cordova, Henry County, Huntingdon, Jackson, Lavinia, Leach, Lexington, McNeary County, Memphis, Paris, Savannah and Speedwell.