Brood XXII will next emerge in the year 2027.
This Brood last emerged in 2014.
Magicicada Brood XXII, the Baton Rouge Brood, exists in Louisiana and Mississippi, as well as Ohio and Kentucky, in 2014.
Some Brood XXII facts:
Brood XXII Magicicadas have a 13-year life cycle.
Three of the four 13-year Magicicada species, M. tredecim, M. tredecassini, and M. tredecula, belong to Brood XXII.
The last time Brood XXII emerged was 2001.
We received reports from Baton Rouge, LA, Houma, LA, Pride, LA, Weyanoke, LA, Vicksburg, MS and Natchez, MS in 2001
According to the Cicada Central Magicicada Database(RIP):
The following parishes in Louisiana will surely experience the Brood XXII emergence: Catahoula, East Baton Rouge, East Feliciana, West Feliciana. There are also literature records (typically older, and not substantiated by recent evidence) that the cicadas will appear in La Salle, Livingston, Pointe Coupee, St. Helena, St. Tammany, Tangipahoa, and Washington parishes.
In Mississippi, Brood XXII should emerge in Adams, Amite, Claiborne, Hinds, Jefferson, Warren and Wilkinson counties, with literature records for Franklin county.
A lot of folks ask if they will appear in Orleans parish, but I haven’t seen evidence for that. However, there is no reason why you couldn’t start looking there, have some gumbo and fancy drinks, and then head north towards Baton Rouge.
These cicadas often appear where they aren’t expected and are absent where they are expected. So, keep an eye and ear out for them, but don’t be too disappointed if they don’t show up in your town.
1907 Map from Marlatt, C.L.. 1907. The periodical cicada. Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Entomology
Notes from 2014: Update June 19:Signs of flagging from cicada egg laying are showing up.
Update (5/23): with folks reporting in from both Louisiana and Mississippi, it’s fair to say the emergence is in full swing. Go out and enjoy them while they’re still around.
Update (5/13): we’ve heard the first report that the cicadas have started singing! In Denham Springs, at least.
Update (5/5): the first confirmed Magicicada exuvia (shells/skins) have been found, as reported by Dave Marshall. It’s been a slow start thanks to a cold spring and cool soil temperatures.
Update (4/26): the first sightings have appeared on Cicadas @ UCONN (formerly Magicicada.org). If you see (or heard) one of these cicadas, report it. And then share it via Twitter, YouTube, Flickr or Facebook so we can all check it out.
Magicicada Brood III (3), the Iowan Brood, will emerge in Iowa, Illinois, and Missouri, in the spring of 2014.
Update for 6/18: It has been great to see so many people are enjoying the emergence. I bolded the names of the counties below, where people have reported emergences in the comments.
Update for 5/31: Cicadas have been reported in Dallas, Union, and Warren counties in Iowa, and Mercer County in Missouri.
Update for 5/30: Greg Holmes reported on the Entomological-Cicadidae Yahoo Group that Donald Lewis, entomologist at Iowa State University, has a report of periodical cicadas from north of Burlington, IA. With air temperatures in the mid 80s for the next 6 days, the soil should be warm enough to coax more cicadas from the ground. Rain may slow the emergence, though.
Some Brood III facts:
Brood III Magicicadas have a 17-year life cycle.
The last time Brood III emerged was 1997.
All three 17-year species will emerge: M. septendecim, M. cassini, and M. septendecula.
According to the Cicada Central Magicicada Database(RIP):
Iowa will likely experience Brood III in Appanoose, Boone, Decatur, Des Moines, Hamilton, Henry, Lee, Louisa, Lucas, Mahaska, Van Buren, Washington counties.
There are literature records (typically older, and not substantiated by recent evidence) that the cicadas will also emerge in the counties: Adair, Adams, Audubon, Cass, Cedar, Davis, Greene, Guthrie, Iowa, Jasper, Jefferson, Johnson, Keokuk, Madison, Marion, Marshall, Monroe, Muscatine, Polk, Poweshiek, Ringgold, Story, Taylor, Union, Wapello, Warren, Wayne and Webster.
If you follow Cicada Mania, you’ve probably heard about the regularly scheduled emergences in Louisiana and Mississippi (Brood XXII); in Iowa, Missouri and Illinois (Brood III); and the (micro) brood in Ohio and Kentucky, BUT, there could be other Magicicada emerging around the USA.
Magicicada cicadas often straggle from the times they are expected to emerge. This can happen due to overcrowding (too many cicadas underground can delay the development and emergence of some). It could also be a natural thing they do — maybe some accelerate from a 17 year to 13 year life cycle, or back, to form new populations or as a strategy for survival. Most of the time they straggle in 1 year or 4 year intervals. Here is were I would expect to see stragglers.
Brood II 1-year (late) stragglers in CT, GA, MD, NC, NJ, NY, OK, PA, VA
Brood IV 1-year (early) stragglers in IA, KS, MO, NE, OK, TX
Brood XXIII 1-year (early) stragglers in AR, IL, IN, KY, LA, MO, MS, TN
Magicicadas with a 13-Year life-cycle are emerging in Ohio & Kentucky, along the Ohio river, in 2014. This particular group of periodical cicadas last emerged in 2001 and 1988.
July 17th: I got confirmation from Dave Marshall and John Cooley that the ‘decim in the brood are Magicicada tredecim!
June 5th: Roy Troutman and I completed 3 days of cicada mapping in Ohio and Kentucky. This map includes our findings, Gene Kritsky’s findings and sightings submitted to Gene from local residents.
June 4th: Audio of a Magicicada tredecula call from the Ohio/Kentucky brood.
June 3rd: I spent the last last two days looking for cicadas in Ohio and Kentucky with Roy Troutman. Mostly ‘cassini, some ‘decula, and a very small amount of ‘decims. We found ‘cassini chorusing in Mason, KY, in the west, and so far as south as Neurls Run, KY. JoAnn White & Monte Lloyd’s paper 17-Year cicadas emerging after 18 years: A new brood?1 mentioned emergences in the Mason location, going back to 1975 (three 13 year generations ago).
2014 Ohio M tredecassini adult on leaf by Roy Troutman
May 31th: Cicadas are reported to be “loud and plentiful” in the Germantown KY area, as well as, Harrison county KY.
May 30th: Roy Troutman confirmed that ‘decula, ‘cassini and ‘decim type Magicicada have emerged in Ohio.
May 23th: Gene Kritsky wrote to let us know that “the emergence is now in full swing” in Ohio and Kentucky.
May 15th: Roy Troutman sent us a set of photos from Crooked Run Nature Preserve in Chilo, Ohio.
13 Year Nymph on tree by Roy Troutman taken in Chilo Ohio in 2014
May 14th: Roy Troutman has reported that the emergence began last night in Chilo, OH according to a Clermont County Parks director. Cool weather this week (in the thirties!) will likely prevent more cicadas from emerging until next week (highs in 80s).
I know what you’re thinking: are these cicadas part of Brood XXII? Time and research will tell. Brood XXII emerges in Louisiana and Mississippi, which are geographically isolated from Ohio & Kentucky, so the two groups of cicadas are likely to be genetically distinct (belonging to different mitochondrial haplotype groups at least). That said, Brood II, which emerges mostly along the east coast of the U.S., also emerges in Oklahoma, which is geographically isolated from the rest of that brood. So, the Ohio/Kentucky cicadas could logically be part of brood XXII.
Back in 2001 Roy Troutman, Les Daniels and Gene Kritsky reported this group of cicadas to Cicada Mania. Les reported both cassini and decim.
My guess is these cicadas are somehow descended from Brood X or Brood XIV 17-year cicadas, and that if they are 13-year cicadas.
I wrote Roy for a list of towns where these cicadas emerged in 2001, and he said:
Chilo, OH
Cold Springs, KY
Higginsport, OH
Neville, OH
New Richmond, OH
Point Pleasant, OH
Ripley, OH
Utopia, OH
Woodland Mound Park, Cinncinati, OH
Check out the paper 1 White, J., and M. Lloyd. 1979. 17-Year cicadas emerging after 18 years: A new brood? Evolution 33:1193-1199. It was the first to document this odd brood of cicadas, although it did not mention the 13 year periodicity.