Category: Broods

Magicicada periodical cicada Broods.

In search of Brood XV (15)

Am I part of Brood XV?

Magicicada periodical cicadas are categorized into broods (see brood chart). Each brood has a unique 17 or 13-year interval of time where cicadas hatch, burrow into soil, tunnel underground feeding off roots for 99% of their life, emerge as nymphs, molt, fly, gather, scream, and reproduce.

Brood II has been emerging every 17 years possibly for millennia. The last times it emerged was in 2013, 1996, 1979, 1962… minus 17 years … back as far as we know. The next time Brood II cicadas will emerge is in 2030.

Sometimes broods “straggle” though. A number of Magicicada will emerge four years earlier than expected, deviating and potentially breaking away from the rest of the brood. In theory, if stragglers are abundant enough, they can form what is called a “shadow brood”, as long as their offspring survive and perpetually reproduce. A shadow brood of Brood II, based on 4-year stragglers, would become Brood XV(15), and would emerge in 2026. There’s more information about stragglers and “spurious broods” on the UCONN Cicada site.

This year, 2026, while we’re looking for 4-year Brood II stragglers we will also look for evidence of an established Brood XV. There are credible reports by cicada researchers Chris Simon and Elias Bonaros that Brood XV may exist in New Jersey in Union County, specifically Fanwood, NJ. Conceivably, an instance of Brood XV could form anywhere Brood II exists — if you’re in Brood II territory, expect the unexpected.

We will definitely be looking for Brood XV this spring.

So, how can we tell that there is a legitimate Brood XV in place rather than ordinary Brood II stragglers? The key will be the abundance of cicadas. A Brood XV population should resemble a typical on-schedule Brood II population: hundreds to thousands of shed skins (exuvia), hundreds to thousands of adults, chorusing and not just individuals singing alone, noticeable mating and egg laying; a Brood XV should last 2-4 weeks. Ordinary Brood II stragglers should arrive in far fewer numbers: dozens per acre not thousands, individual songs but no choruses, little to no mating or egg laying; birds should pick off most of the stragglers so they will not last long. While it is possible to have a pure straggling event that seems full brood emergence event (see Princeton in 2017 for Brood X stragglers), most of the time you’ll find one or two adults per suburban yard.

Here are some related comments from way back in 2009 discussing Brood II stragglers and a possible Brood XV:

Our NJ town (30 miles west of Manhattan) is covered in Magicicadas. Can they be straggers when the entire town is covered in them? Here are some photos I took today: Photo Album

Comment by Charlene — May 22, 2009 [AT] 6:49 pm

Charlene, yes, they’re stragglers even though there are so many. They’re stragglers by virtue of the fact that they’re arriving 4 years early.

Comment by Dan — May 22, 2009 [AT] 7:02 pm

Thanks to Charlene’s post I went to Fanwood. found 7 tenerals and captured one nymph which will eclose here in the comfort of my home. Heard some light M. septendecim choruses. did not see any M. cassini or M. septendecula. Some trees where covered with at least 100 exuvia. Some had none. The question is have we seen the maximum yet or is it just starting? Please keep an eye out for further emergence sites here in the North East.

Comment by Elias — May 25, 2009 [AT] 1:10 pm

Update on my mini colony that is being kept alive in a Butterfly pavilion. One young male started to sing today. The amplitude is very low. Also a female in the cage responded with wing flick signalling. Brought home 8 from New jersey, 6 still alive. Today is Day #4. Next couple of days may need to look in Staten island or back to Fanwood. Anyone have any other reports? I know the weather is terrible. We need some sunshine!!

Comment by Elias — May 28, 2009 [AT] 8:17 pm

Notes:

It is theorized that all broods are shadow broods of another brood. Brood II <-- Brood VI <-- Brood X <-- Brood XIV. When Magicicada straggle in enormous numbers they can form new broods offset by 4 or 1 years, which is why we have 13-year broods (mostly in the warmer south) and 17-year broods (mostly in the colder, glacier-prone north) with the difference being 4 years. Read: K S Williams, C Simon. 1995. The Ecology, Behavior, and Evolution of Periodical Cicadas. Annual Review Entomology. 40:269-295. https://doi.org/10.1146/annurev.en.40.010195.001413
Broods are named and numbered using Roman Numerals. C.L. Marlatt devised this naming convention. The letter I = 1, II = 2, III = 3, IV = 4, V = 5, VI = 6, VII = 7, VIII = 8, IX = 9, X = 10, XIII = 13, XIV = 14, XIX = 19, XXII = 22, XXIII = 23. 17-year broods are named I-XVII (1-17) and 13-year broods are named XVIII-XXX (18-30), though many do not exist.
17-year broods, twelve exist (I, II, III, IV, V, VI, VII, VIII, IX, X, XIII, XIV), one is extinct (XI) and four missing broods (XII, XV, XVI, XVII) either never existed or went extinct before recorded history.
Of the thirteen possible 13-year broods, three exist (XIX, XXII, XXIII), one is extinct (XXI) and nine either never existed or went extinct (XVIII, XX, XXIV, XXV, XXVI, XXVII, XXVIII, XXIX, XXX)
Only a pair of 13-year and 17-year broods can emerge in the same year. XIII and XIX co-emerged in 2024.Two or more 17-year broods cannot emerge in the same year. Two or more 13-year broods cannot emerge in the same year.
Whenever I write about brood numbering or the fact that 17 and 13 are prime numbers, I feel like Scott Steiner explaining the mathematic possibility of beating him.

Brood II Magicicada Periodical Stragglers

2026 Brood II Straggler game plan

Post author By Dan
Post date March 9, 2026
4 Comments on 2026 Brood II Straggler game plan

Brood II, a brood of Magicicada found in Connecticut, Georgia, Maryland, North Carolina, New Jersey, New York, Oklahoma, Pennsylvania and Virginia, is set to emerge in the year 2030, but some Brood II stragglers will emerge in 2026.

GET READY! If you had an abundance of cicadas back in 2013, you are likely to find a handful in your yard in 2026.

If you see or hear one, report it using the iNaturalist app or website or using the Cicada Safari app. Share your observations on Instagram, TikTok, Facebook, X, Bluesky and YouTube. You can use the hashtag #BroodII. Chat about them on the Facebook Cicada Discussion Group.

Straggler Watch

What is a straggler? A straggler is a periodical cicada that emerges later or earlier than expected. Magicicada often emerge 4 years earlier than expected. You can also call them “precursors” when they emerge earlier.

When to look for stragglers?

Stragglers will emerge in the spring sometime between late April and May.
Their emergence will be triggered by the warming of the soil where they live. When the soil gets to be approximately 64°F eight inches deep, they will emerge. Air temperatures in the 70s and 80s warm the soil. Warm rain helps as well. Read more about that.
Tip: We usually don’t see them emerge until the trees have leaves and purple iris bloom.

You can also look for cicada chimneys or tunneling cicadas under logs, slates or rocks in April and early May. Look, observe, but do not disturb them.

A cicada chimney is an elevated exit cicadas build above their tunnels:
Cicada Chimney Metuchen Brood II

Where to look for stragglers?

Check this map on the UCONN website. That is where Brood II last emerged.

Hot spots from 2013:

Connecticut (CT)

Meriden, CT

New Jersey (NJ)

Berkeley Heights, NJ
Colonia, NJ
Edison, NJ
Flat Rock Brood Nature Center, NJ
Iselin, NJ
Lewis Morris Park, NJ
Maplewood in Essex County, NJ
Metuchen, NJ
Millburn, NJ
Montclair, NJ
Mountainside, NJ
Plainfield, NJ
Scotch Plans, NJ
Upper Montclair, NJ
West Milford, NJ
Westfield, NJ

There might be a “shadow brood”, Brood XV, around the Fanwood, NJ area. This would be a brood established from Brood II stragglers, with a large enough of a population to breed and sustain a new brood offset 4 years from Brood II. We will see.

New York (NY)

Cornwall-On Hudson, NY
Fishkill, NY
Germantown, NY
Red Hook, NY
Rhinebeck, NY
Staten Island, NY
Stony Point, NY

North Carolina (NC)

Madison, NC
Yadkin County, NC

Oklahoma (OK)

Oklahoma City, OK

Virginia (VA)

Brentsville, VA
Calvert County, VA
Charlottesville, VA
Doylesville, VA
Fredricksburg, VA
Front Royal, VA
Glen Allen, VA
Kinderhook, VA
Lake Ridge, VA
Louisa County, VA
Manassas Battlefield Park, VA
Martinsville, VA
North Garden, VA
Rhoadesville, VA
Springfield, VA
Stafford County, VA
Stanardsville, VA
Woodbridge, VA

What do they look like?

They look like this once they’ve molted:
Magicicada
Red eyes (typically), black bodies, orange-black legs and orange-yellow wings.

Nymphs that have recently emerged from the ground:
Can I give you a hand _Magicicada nymphs in Metuchen NJ_

This is each major stage in their life cycle:

Top, Left to Right: cicada egg, freshly hatched nymph, second and third instar nymphs. Bottom, Left to Right: fourth instar nymph, teneral adult, adult. (Photos by Roy Troutman and Elias Bonaros).

There are 3 types/species of Magicicada in Brood II: Magicicada cassini, Magicicada septendecim, and Magicicada septendecula.

Left to right: Magicicada cassini, Magicicada septendecula, Magicicada septendecim::

Brood XIV Magicicada

Hogs and Cicadas in Tennessee

Post author By Dan
Post date June 1, 2025
No Comments on Hogs and Cicadas in Tennessee

Lynn Faust, author of the book Fireflies, Glow-worms, and Lightning Bugs, wrote us in early May concerned that the wild hogs in her area had rooted up and eaten Brood XIV cicadas about to emerge. Hogs are omnivores and are excellent at finding food buried underground, so her assumption makes sense.

She told us that the Turkey Camp on Greasy Creek had hundreds of intact pre and post emergence cicada turrets in 2008, with lots of chorusing. However, in 2025, there were no intact cicada turrets where the hogs plowed up the ground. There were plenty of fragments of turrets, but no adult cicadas or their shells (shed skins).

You can see the hob rooting in Lynn’s photos:

Hog rooting.

Any impacts to cicada populations, like hog rooting, is interesting to people who study cicadas.

Good news!

Fortunately some cicadas survived, in the hog-plowed areas, and there was no impact in the areas where the hogs did not plow up the ground.

News from Lynn:

Today 10 days later (May 19, 2025) than first visit, completely different!

All previous locations still singing loudly by the 1000s, millions?

Greasy Creek drainage was also singing loudly!

In the plowed up areas, there remained no cicada skins and no evidence and broken mud towers.

BUT, away from the roads much of the forest was intact and apparently plenty made it up into the treetops and they are singing and courting mightily now.

So I wanted you to know the happy ending. Those hogs won a good cicada buffet, but Cicada Brood 14 won the season!

Here are some of Lynn’s photos. All photos in the post are copyright of Lynn Faust.

Adult Magicicada

A trio of cicadas

Brood I Brood X Brood XXII Magicicada Periodical Stragglers

Magicicada stragglers everywhere in 2025

Post author By Dan
Post date May 16, 2025
No Comments on Magicicada stragglers everywhere in 2025

Magicicada periodical cicadas often emerge earlier or later than expected. This phenomenon is called straggling, and the individual cicadas that emerged earlier or later are called stragglers. Magicicada are presumed to straggle for a number of reasons including subterranean overcrowding and the effects of urban heat islands on subterranean environments (a recent phenomenon). Evolutionarily speaking, it is a mechanism that allows them to break away from their original brood and form a new one. Right now on the homepage of the UCONN Cicada site they have a good story about how Brood XIV connects to Brood X, which connects to VI, which connects to II.

Stragglers, in the past, were observed and documented (MORRIS,J. G. 1870. Seventeen-year locust two years too late. Amer. Ent., 2: 304.) but it is much easier to do so today thanks to apps like iNaturalist, Cicada Safari, and mobile phones and social media in general.

So, where are we observing stragglers in 2025?

Down in the Baton Rouge area of Louisiana, Brood XXII is emerging 2 years early (iNaturalist Map). Brood XXII typically has a 13-year lifecycle.

There are many Brood X stragglers emerging in the Washington D.C. area (iNaturalist Map).

Brood I stragglers are appearing in the Roanoke, Virginia area emerging four years early. (iNaturalist map).

There are a handful of Brood X stragglers in the Princeton, NJ area. (iNaturalist Map).

And there are definitely more…

If you want to look for stragglers, online, you can use iNaturalist or the Cicada Safari app. Here is a map with all the Cicada Safari sightings on it.

And here’s a map that plots all the Broods, courtesy of Cicadas @ UCONN:

Two notes:

1) The general public does not like the term stragglers when applied to cicadas that emerge early, because straggling generally means to be late, not early. Marlatt referred to them as precursors (Marlatt, 1989). You can use that term if you like.
2) People called cicadas locusts in the recent past. Scientifically speaking and in modern times, a locust is a grasshopper. Cicadas and grasshoppers are very different insects, but they can emerge in large numbers and do some damage to plants (cicadas cause flagging on trees, while locusts eat everything), hence the confusion.

Books Brood XIV Gene Kritsky

A new Gene Kritsky book: The Pilgrims’ Promise: The 2025 Emergence of the Periodical Cicada Brood XIV

Post author By Dan
Post date March 21, 2025
No Comments on A new Gene Kritsky book: The Pilgrims’ Promise: The 2025 Emergence of the Periodical Cicada Brood XIV

Looks like Doctor Gene Kritsky has a new periodical cicada book: The Pilgrims’ Promise: The 2025 Emergence of the Periodical Cicada Brood XIV.

Like clockwork, Gene is back with another book about one of the major periodical cicada broods found in the U.S.A. This time it is for Brood XIV (14). Gene’s books are the “only game in town” so to speak, when it comes to periodical cicadas. They detail the facts about the insects, tell you where you can find them, and include folklore and legends about the insects.

Brood XIV Magicicada Periodical

Brood XIV (14) Cicadas will emerge in 2025 in twelve states

Post author By Dan
Post date June 8, 2024
55 Comments on Brood XIV (14) Cicadas will emerge in 2025 in twelve states

It’s a Wrap! Periodical cicada Brood XIV (14) emerged in the spring of 2025 in Georgia, Kentucky, Indiana, Massachusetts, North Carolina, ~~New Jersey~~, New York, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia.

New Jersey was a bust (no observances), experts decided to remove Maryland from the brood range, the first reported adult happened in Leicester, NC on 4/22, and Tennessee had the most observances.

Here’s what the emergence looked like over time, across the U.S. (includes a sprinkling of straggler data):
2025 Magicicada iNaturalist

What:

Millions of these Magicicada cicada insects:

Adult, Nymph Molting — Top: Adult. Bottom left: Nymph. Bottom right: Molted cicada.

Cicadas with a 17-year life cycle.
Some people call them “locusts” but they’re really cicadas.
Which species: All three 17-year species, Magicicada septendecim, Magicicada cassini and Magicicada septendecula. How to tell the difference between the species.
NOT the green ones (Neotibicen) that arrive annually.

When:

Usually beginning in May and ending in late June. These cicadas emerge approximately when the soil 8″ beneath the ground reaches approximately 64 degrees Fahrenheit. Above ground temperatures in the 70’s-80’s help warm the soil to that point. A warm rain will often trigger an emergence.

Other tips: these cicadas will emerge after the trees have grown leaves, and, according to my own observation, around the same time Iris flowers bloom.

Where*:

Georgia: iNaturalist Live Map (22 Observations). Counties: Fannin, Lumpkin, Rabun, Union. Cicadas have been reported using the Cicada Safari app in the Lake Burton area. Update: the emergence is underway.

Georgia’s populations are difficult to access. I have heard that Magicicada septendecula dominate. Update: just nymphs reported so far, but I bet adults have emerged.

Indiana: iNaturalist Live Map (105 Observations). We’re talking the southern part of Indiana, by the Ohio River. Counties: Crawford, Harrison, Perry. The first reported adult cicadas were found in Corydon on 5/16. Update: the emergence is underway.

Kentucky: iNaturalist Live Map (1,413 Observations). We’re talking most of Kentucky east of U.S. Route 41, with major hot-spots along the Ohio river. Counties: Anderson, Barren, Bath, Bell, Bourbon, Boyd, Bracken, Campbell, Carter, Clinton, Edmonson, Fayette, Franklin, Floyd, Gallatin, Grant, Hardin, Harrison, Henderson, LaRue, Laurel, Leslie, Logan, Madison, McCreary, Montgomery, Nelson, Nicholas, Pendleton, Pike, Pulaski, Rowan, Scott, Shelby, Whitley. Cities: Adairville, Bowling Green, Corbin, Flemingsburg, Frankfort, Greensburg, Hazard, Jeffersontown (J-Town), Louisville, Radcliff, Richmond, Valley Station. The first reported adult cicada was found in Whitley City, KY on 5/2. Update: the emergence is underway.

Massachusetts: iNaturalist Live Map (1,235 Observations). Counties: Barnstable, Plymouth. Locations: (western half of) Cape Cod. The first reported adult cicadas were found in Sandwich on 5/17. Update: the emergence is underway.

New Jersey: iNaturalist Live Map (0 Observations). We’re talking southern New Jersey, where the Jersey Devil lives (he might have ate them all up). Counties: Atlantic, Camden, Ocean. Cities: Linwood, Manchester Township, Winslow Township. Update: nothing yet, just a Brood X straggler in Princeton.

New Jersey’s population may have gone extinct. 🙁

New York: iNaturalist Live Map (129 Observations). We’re talking Long Island. Counties: Nassau, Suffolk. New York cities: East Setauket and Dix Hills (thanks Elias Bonaros). The first reported adult cicadas were found in Coram and Setauket on 5/15. Update: the emergence is underway.

Here’s a Facebook group for Long Island Cicadas.

North Carolina: iNaturalist Live Map (1,351 Observations). We’re talking western North Carolina, particularly areas heavily impacted by Hurricane Helene. It will be interesting to see if the cicadas were impacted as well, as flooding may have washed away their underground tunnels and habitat. Counties: Buncombe, Burke, Caldwell, Catawba, Henderson, McDowell, Mitchell, Wilkes. North Carolina cities: Asheville, Haw Creek, East Asheville, Moravian Falls, north-west of Nashville, Wilkesboro. The first reported adult cicada was found in Leicester, NC on 4/22. Update: the emergence is underway.

Ohio: iNaturalist Live Map (1,402 Observations). We’re talking south-western Ohio, with the hottest spots just east of Cincinnati. This is the homeland of cicada-experts Gene Kritsky and Roy Troutman, and world-famous botanist Matt Berger. Counties: Adams, Brown, Butler, Clermont, Clinton, Gallia, Hamilton, Highland, Ross, Warren. Cities: Batavia, Blue Ash, Cincinnati area, Indian Hill, Loveland, Maderia, Mariemont, Milford, Miami Twp. The first reported adult cicadas were found in Rio Grande and Bainbridge on 5/8. Update: the emergence is underway.

Roy Troutman let us know that some cicadas where still emerging up until July 1st. Heaving flooding earlier in the year may have delayed their emergence, due to reluctance to emerge from the safety of their water-proof cells.

Pennsylvania: iNaturalist Live Map (647 Observations). We’re talking central Pennsylvania, and random locations toward the east.Adams, Berks, Blair, Cambria, Centre, Clearfield, Clinton, Cumberland, Huntingdon, Lackawanna, Luzerne, Lycoming, Mifflin, Montour, Northumberland, Snyder, Union. Pennsylvania cities: Bear Gap, Elverson. The first reported adult cicada was found in Morgantown on 5/8.

Tennessee: iNaturalist Live Map (1,640 Observations). We’re talking north of Nashville, north-west of Chattanooga and in random places in the eastern half of the state. Counties: Bledsoe, Blount, Campbell, Carter, Cheatham, Claiborne, Cocke, Coffee, Cumberland, Davidson, Grainger, Grundy, Hancock, Hawkins, Jefferson, Marion, Putnam, Roane, Robertson, Rutherford, Sevier, Sumner, Unicoi, Williamson. Cities: Cades Cove, Goodlettsville, Hampton, Muddy Pond. The first reported adult cicada was found in Nashville on 4/25. Update: the emergence is underway.

Virginia: iNaturalist Live Map (205 Observations). We’re talking western Virginia, and mostly the part tucked under Kentucky. Counties: Botetourt, Lee, Russell, Scott, Smyth, Tazewell, Wise. The first reported adult cicada was found in near Campbell on 4/25. Update: the emergence is underway. Brood X stragglers are emerging near D.C.

West Virginia: iNaturalist Live Map (139 Observations). We’re talking the area west of Interstate 77 (I-77), bordered by Kentucky and Ohio. Counties: Cabell, Kanawha, Mason, Mingo, Putnam, Wyoming. West Virginia cities: Huntington. The first reported adult cicada was found in in Panther State Forest on 5/4. Update: the emergence is underway.

*City data comes from May 2008 and June 2008 blog comments. County locations are historical and may no-longer be accurate.

Experts (Gaye Williams, State Entomologist of Maryland, John Cooley of UCONN) have confirmed that there will be no Brood XIV cicadas for Maryland. That said, there will be some stragglers from Brood X. You can look for reports of stragglers using this iNaturalist map.

More Maps and Location Tips!

Cicadas @ UCONN has the most up to date maps. Zoom in and look for the images of cicadas.
Try Dr. Gene Kritsky’s new book: The Pilgrims’ Promise: The 2025 Emergence of the Periodical Cicada Brood XIV
Not sure about your town? Ask someone in your community who lived there 17 years ago.
Join the Magicicada 2025 Brood XIV project on iNaturalist.com.
Download the Cicada Safari App and find and report cicadas.
View the latest posts from the Cicada Safari App on a map!

* Although county locations may no longer be accurate, I like to keep them on the page in case someone discovers a small, secret or unknown population of these cicadas. People might be disappointed, but we want to know for sure that the cicadas are (or are not) thriving in historical locations. This is the cicada researcher’s dilemma: either focus on the guaranteed/sure shot locations for the general public to enjoy, or include the obscure, relic locations so we do not miss out on rare cicada sightings. Cicadas @ UCONN talks about the relationship between the different broods — Brood XIV and Brood X are closely related geographically and genetically. You might find a Brood X straggler emerging 4 years late, and mistake it for Brood XIV. If a large number (large enough to sustain future emergences) of Brood X makes the 4-year “JUMP” to be in synch with Brood XIV, they technically become Brood XIV (and the reverse is true).

Got Massospora?

Have you seen any cicadas with Massospora infections. Professor Matt Kasson of WVU wants your Massospora-infected Magicicada cassini and septendecula cicadas (but not septendecim). Email mtkasson@mail.wvu.edu if you have one to share!
Professor Matt Kasson wants your Massospora-infected Magicicada cassini and septendecula cicadas (but not septendecim). Email mtkasson@mail.wvu.edu if you have one to share.

2025 Map… so far (5/27)

Dr. Gene Kritsky of the creator of the Cicada Safari app sent us this map of 2025 Magicicada emergences to date. It contains both Brood XIV and stragglers from other broods.

1907 Map

This map comes from the 1907 publication Marlatt, C.L. 1907. The periodical cicada. Washington, D.C.: U.S. Dept. of Agriculture, Bureau of Entomology.

Marlatt 1907 14 Brood XIV

Here is a map of all Broods from the Cicadas @ UCONN site

Zoom in and click the pins to see which Brood it represents. Brood XIV is green. (May not work on older devices.)

More facts and fun:

Use the correct image and the correct language when talking about these cicadas. Here’s some images you can share.
Use the Periodical Cicada Emergence Checklist for the Maximum Magicicada Experience.
All cicada questions that are frequently asked.
The 17 Most Interesting Periodical cicada facts.
Cicada Mania Crossword Puzzle. It isn’t easy.

YouTube Playlist of Brood XIV Cicadas from 2008

Brood XXIII Chris Simon Magicicada Periodical Stragglers

Brood XXIII Cicada Stragglers are emerging!

Post author By Dan
Post date May 9, 2024
2 Comments on Brood XXIII Cicada Stragglers are emerging!

BROODXXIII

One phenomenal behavior of Magicicada periodical cicadas is they “straggle”, meaning they emerge earlier or later than the year they are expected. Typically they emerge 1 or 4 years before they’re supposed to emerge.

Brood XXIII is expected to emerge in four years in 2028, but enough are emerging in 2024 for cicada researchers like Chris Simon to take notice! She let us know about the stragglers on May 8th.

Brood XXIII is found in Arkansas, Illinois, Indiana, Kentucky, Louisiana, Mississippi, and Tennessee. This is not a perfect map (it overlaps with Brood XIX), but XXIII cicadas will show up in that area.

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.

Illinois: Anna, Carbondale, Carterville, Chester, Clinton Lake, Marissa and Robinson.

Indiana: Harmonie State Park, Hymera, Leanne, Richland, Sullivan And Posey Counties.

Kentucky: Benton, Calvert City, Gilbertsville, Henry County, Murray, and Paducah.

Louisiana: Bastrop, Choudrant, Grayson and West Monroe.

Mississippi: Alva, Arlington, Booneville, Brandon, Clinton, Corinth, Desoto County, Florence, French Camp, Hernando, Holcomb, Houlka, Jackson, New Albany, Oxford, Potts Camp, Silver Creek, Tishomingo, and Water Valley.

Tennessee: Atoka, Benton, Cordova, Henry County, Huntingdon, Jackson, Lavinia, Leach, Lexington, McNeary County, Memphis, Paris, Savannah, and Speedwell.

Here’s a blue overlay of there Brood XXIII emerges from the UCONN map on the iNaturalist data (as of May 5th):

Brood XXIII overlay

Surrounding the blue area on the west and east is Brood XIX and north will be Brood XIII.

More info:

Brood XIII Brood XIX Magicicada Periodical

A quick way to tell the difference between the 7 periodical cicadas species

Post author By Dan
Post date April 20, 2024
No Comments on A quick way to tell the difference between the 7 periodical cicadas species

Here is a quick way to tell the difference between the 7 periodical cicada species:

Download this chart. Click/tap for a larger version:

The songs of Magicicada cassini (17-year) and Magicicada tredecassini (13-year) are essentially identical:

M. cassini:

M. tredecassini:

The songs of Magicicada septendecula (17-year) and Magicicada tredecula (13-year) are essentially identical:

The songs of Magicicada septendecim (17-year), M. neotredecim (13-year), and Magicicada tredecim (13-year) are essentially identical. M. neotredecim varies the sound of its call in the presence of M. tredecim.

And/or watch this video:

Then read this and listen to the sound files on the page: Where will 17 & 13 Year Periodical Cicada Broods emerge next?

Books Brood XIII Brood XIX Magicicada Periodical

New Brood XIX and XIII Cicada Book by Dr. Gene Kritsky

Post author By Dan
Post date February 1, 2024
3 Comments on New Brood XIX and XIII Cicada Book by Dr. Gene Kritsky

Cicada researcher and communicator Dr. Gene Kritsky has a new book about Brood XIX and XIII which are both emerging in the spring of 2024: A Tale of Two Broods: The 2024 Emergence of Periodical Cicada Broods XIII and XIX. It is available in paperback and Kindle formats.

A Tale of Two Broods: The 2024 Emergence of Periodical Cicada Broods XIII and XIX