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October 3, 2017

Brood VII, the Onondaga Brood, Will Emerge in New York State in 2018

Filed under: Brood VIII,Magicicada,Periodical — Dan @ 8:13 pm

Periodical cicadas (Magicicada septendecim, people call them “locusts”) will emerge in the Finger Lakes area of New York state in 2018.

This group of cicadas is called Brood VII (7), and is known as the the Onondaga Brood.

Here’s an old map of the brood from entomologist C. L. Marlatt:
Brood VII map
A more up to date map and more comprehensive information can be found on Magicicada.org.

A pair of Magicicada septendecim:
A pair of mating Magicicada septendecims found in Woodbridge Township NJ

More details:

  • What: Brood VII is the smallest periodical cicada brood in the U.S., and is isolated in the Finger Lakes area of New York State. Only one species of cicada belongs to the brood: Magicicada septendecim (click link for sounds, video). This cicada has a 17-year life cycle. Sadly, Brood VII will likely be the next Brood to go extinct.
  • When: May or June. Magicicada cicadas typically emerge in the spring, once the soil underground where they live reaches approximately 64 degrees Faraihneght.
  • Where: the Finger Lakes area of NY State. The following counties have had these cicadas in the past: Cayuga, Livingston, Monroe, Onondaga, Ontario, Seneca, Steuben, Wyoming, York.

Special note:

There’s a strong possibility that Brood XXII stragglers will also emerge in parts of Louisiana, Mississippi, southern Ohio & northern Kentucky. So, if you come across periodical cicadas in those areas, they’re Brood XXII, not VII.

Further reading / viewing / listening:

September 30, 2017

Avoid “Locust Loco”

Filed under: Folklore,Magicicada,Periodical — Dan @ 4:39 pm

A nice illustration that shows the difference between Magicicada periodical cicadas & Locust grasshoppers from the April 18, 1919 edition of The Washburn Leader, Washburn, North Dakota.

Once you see them up-close, it’s clear that cicadas are not locusts. Nearly 98 years later, people still call cicadas “locusts” though.

1919

April 27, 2017

Brood VI 17-Year Cicadas Due in Spring of 2017

Filed under: Brood VI,Magicicada,Periodical — Dan @ 1:01 am

The 2017 Periodical Cicada Season is Over. Thanks for visiting.

Final Update: I traveled to Wisconsin last week and spent a few days looking for cicadas in the southern part of the state (Madison, Baraboo, Janesville, Cedar Bluff, Dodgeville) but unfortunately I did not see or hear any. :(. So far this year though, Brood VI was spotted in GA, NC, SC, OK, OH and perhaps NY….

BROOD VI

Previous updates can be found in the comments.

Brood VI (6) 17-year cicadas (“locusts”) will emerge in the spring of 2017. The main group will emerge in South Carolina, North Carolina and Georgia. Other lesser groups should emerge in Ohio & Wisconsin. And possibly other states/locations as well.

About Brood VI:

The cicada species that will emerge are Magicicada septendecim1, Magicicada septendecula1, and possibly Magicicada cassini2. These periodical cicadas have a 17-year life cycle. The last time they emerged was 2000.

When: Generally speaking, these cicadas will begin to emerge when the soil 8″ beneath the ground reaches 64 degrees Fahrenheit 3. A nice, warm rain will often trigger a emergence. So, definitely May, but something might happen in April if we have a particularly hot spring.

Report a sighting: If you see or heard cicadas, please report them to Magicicada.org. This helps researchers map the location of the cicadas.

Locations where they are likely to emerge:

This data comes from the Cicada Central Magicicada Database6 and other sources 5, 7.

Georgia:

Counties:

Best bet: Rabun.6

1889 document: Dade (Trenton), Elbert (Elberton), Floyd (Rome), Habersham (Turnerville), Hill (Virgil), Paulding (Brownsville), Rabun, Spalding (Experiment), White (Tesnatee). 7

Not Atlanta.

North Carolina:

Counties:

Best bet: Buncombe (Asheville), Burke, Caldwell, Henderson, McDowell, Polk, Wilkes6.

1889 document: Alexander (Mount Pisgah, Taylorsville), Bladen, Buncombe (Asheville), Burke (Morganton), Cabarrus, Caldwell (Lenoir, Hickory), Catawba (Claremont, Maiden), Henderson (Westfeldt Park, Horse Shoe), Iredell, Lincoln (Denver, Lincolnton), Macon (Franklin), McDowell (Greenlee), Moore, Montgomery, Pender (Long Creek), Polk (Columbus, Saluda, Mill Spring), Rabun (Highlands), Randolph, Rutherford, Swain (Whittier), Transylvania, Union (Waxhaw), Washington, Wilkes (Moravian Falls, Wilkesboro).7

South Carolina:

Counties:

Best bet: Oconee, Pickens6.

1889 document: Oconee (Stumphouse Mountain which is near Westminster).7

Brood VI

Wisconsin:

Wisconsin seems like a sure thing as well.

Counties:

Best bet: Columbia, Dane, Rock, Sauk (Baraboo)5

1889 document (aside from those mentioned above: Burnett (Spooner), Columbia (Madison), Crawford (Towerville), Dane (Janesville), Fond du Lac (Ripon), Green Lake (Dartford), Marquette (Harrisville), Sauk (Baraboo), Sawyer (Hayward), Washburn (Shell Lake), Waushara (Auroraville). 7

Ohio

Counties:

Best bet: Hamilton (Hyde Park, Delhi, Finneytown, Green Township, Anderson). 5

1889 document: Carroll, Champaign, Columbiana, Delaware, Madison, Mahoning, Montgomery, Morrow, Pickaway, Shelby, Union.

And Maybe…

Various counties in Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, New York, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia. More about that here.

Learn more about Brood VI:

Wanted Poster

Download a PDF of the wanted poster (1.3MB).

(more…)

July 23, 2016

Reading a 97 year old cicada news article

Filed under: Magicicada,Periodical — Dan @ 5:02 am

Locust

I was looking through old newspapers for articles about periodical cicadas. I found an article in the Taiban Valley News from April of 1919, titled “17-Year Locust” Due This Year1. The Taiban Valley news was published out of New Mexico, which does not experience periodical cicadas aka “17-year locusts”, so I guess the story was supplied to its readers as a curiosity — just something oddball/interesting to read. The text of the article was supplied by the U.S. Department of Agriculture (possibly C.L. Marlatt himself), and the main image of the article is an illustration that appeared previously in U.S. Department of Agriculture documents and is attributable to a Miss L. Sullivan2.

“Locusts”

97 years ago people called periodical cicadas “locusts”, just as they do today. I quote, “It has been so long miscalled by the name of locust, however, that there is no hope of divesting it of that incorrect appellation”. “No hope”! Even today, about half the people I meet call them “locusts”.

Human lifespans were a lot shorter 97 years ago

The next fact — and this startled me — is how short the average human lifespan was 97 years ago. I quote: “The fact that it appears in countless numbers one year, then is not seen again for half the average lifetime of human beings and then suddenly appears again in countless numbers”.

Half the average lifespan of human beings? Back in 1919 the average life expectancy was just 55. At most a person could expect to witness 3 emergences back then, and since babies and toddlers really don’t remember things, 2 times makes sense. Today (2016) life expectancy is around 79 years in the U.S., which means the average person will only get to see 4. I’ve seen 9, but I travel around.

Vermont still had periodical cicadas:

Back in 1919, Vermont still had periodical cicadas: “with some Isolated colonies as far northeast as upper Vermont”. Since then, they must have gone extinct.

Brood 18?

The article talks about Brood 18 emerging in the same year as Brood 10 (note, the article does not use Roman numerals). I believe the Brood 18 the article they refer to is what we now call Brood 19 (XIX) today. The article describes Brood 18 as having a 13-year life cycle, and occurring in Alabama, Georgia, North Carolina, South Carolina and Tennessee. The only brood that matches that is Brood XIX (see the map).

If it is indeed Brood XIX, the article is likely incorrect about the coincidence of Brood XIX and X emerging in 1919. While Brood X definitely emerged in 1919, Brood XIX would emerge in the following year 2020. Interestingly enough, the now extinct Brood XI emerged in 2020 (in Connecticut).

The rest of the article is less remarkable, but still a fun read for “the most interesting insect in the world”.

Update (8/26/2016):

David Marshall of the University of Connecticut pointed out a map of the Brood XVIII that was indeed set for emergence in 1919, which is likely what the writes of the article were citing. David points out though that this Brood XVIII was likely comprised of one-year-early emergences (stragglers) of Brood XIX, rather than an actual unique brood.

Brood XVIII

The periodical cicada, Marlatt, C. L., Washington, D.C. :U.S. Dept. of Agriculture, Bureau of Entomology,1907.

1 Taiban Valley news., Taiban, Roosevelt County, N.M. April 04, 1919.
2 C. L. MARLATT. Account Of Cicada Septendecim, Its Natural Enemies And The Means Of Preventing Its Injury, Together With A Summary Of The Distribution Of The Different Broods. U. S. Department Of Agriculture. Division Of Entomology. Bulletin No. 14. 1898.

June 26, 2016

Got Flagging? Report flagging and egg nests.

Filed under: Citizen Science,Magicicada,Periodical — Dan @ 1:01 am

Got flagging? Flagging happens when tree branches wilt or die due to cicada egg laying, resulting in bunches of brown leaves. Don’t worry, this will not cause trees to die, unless they are small and weak trees. Flagging can actually do a tree a favor, by removing its weakest branches.

Visit the Magicicada.org report page to report flagging (scroll towards the bottom of the form / only on Desktop for now).

Some video of cicada flagging:

A photo of flagging:

Periodical Cicada Flagging 3

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