News! A Brood XIX straggler has emerged in Georgia! More stragglers have been sighted in Hartselle AL, Pittsboro, NC, Chattanooga, TN, Asheboro, NC, and Chapel Hill, NC.
2024 will be a “magical” year for cicada fans because the periodical cicada broods XIII and XIX will emerge in 2024. These broods co-emerge every 221 years (13 X 17). The last time they co-emerged was in 1803, the same year as the Louisiana Purchase (the same year the U.S. got Brood XIX states Louisiana, Arkansas, Iowa, Kansas, Missouri, and Oklahoma). Coincidence? Perhaps.
Brood XIII (13) has a 17-year lifecycle and is found in the states of IA, IL, IN, MI, and WI. This brood features the species Magicicada septendecim, Magicicada cassini, and Magicicada septendecula.
People (cicada tourists) have begun to ask “Where is the best place to see Brood XIII in 2024?”. I can recommend the Ryerson Conservation Area in Deerfield, IL. See photos and videos from my trip there in 2007. Illinois has both Brood XIII and Brood XIX, and all 7 Magicicada species. So you could spend a week in southern Illinois for Brood XIX and then travel north to Deerfield for Brood XIII.
Brood XIX (19) has a 13-year lifecycle and is found in the states of AL, AR, GA, IA, IL, IN, KS, KY, LA, MD, MO, MS, NC, OK, SC, TN, and VA. This brood is also known as the Great Southern Brood and features the species Magicicada tredecim, Magicicada neotredecim, Magicicada tredecassini, and Magicicada tredecula.
Do these broods overlap? If they do, it’s in the Springfield, Illinois area. Springfield is a good place for your cicada sightseeing “basecamp”. Take a look at these maps on the UCONN Cicadas website: Brood XIX and Brood XIII.
Your next chance to see and hear two broods co-emerge will be in 2037 when Brood XIX and Brood IX (9) emerge.
When these broods co-emerge, do they only mate with their own brood? What if they mate with the other brood? Does it mess up the lifecycle?
The Broods do not overlap much link to a map, so it is hard to say. I think researchers would have to do a large scale experiment where 17 year cicadas were brought to a 13 year area and vice versa, and then wait to see what happens.
Thanks for the info. I think you mean 1803 not 1083
You are correct.