Author: Dan

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17 & 13 Year Periodical Cicadas

What will happen in 2025:

The Forecast for 2025 is Brood XIV will emerge in Georgia, Indiana, Kentucky, Massachusetts, North Carolina, New Jersey, New York, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia. (Green means the emergence has begun.)

Stragglers from other broods have been reported.

Magicicada Brood Chart

The Brood Chart features the names of the broods (Roman numerals), emergence years, cycle-length, straggler-years, species and states where they may emerge.

Brood	Year	Cycle	States
I	2029	17	TN, VA, WV
II	2030	17	CT, GA, MD, NC, NJ, NY, OK, PA, VA
III	2031	17	IA, IL, MO
IV	2032	17	IA, KS, MO, NE, OK, TX
V	2033	17	LI NY, MD, OH, PA, VA, WV
VI	2034	17	GA, NC, SC, WI, OH
VII	2035	17	NY
VIII	2036	17	OH, PA, WV, OK
IX	2037	17	NC, VA, WV
X	2038	17	DE, GA, IL, IN, KY, MD, MI, NC, NJ, NY, OH, PA, TN, VA, WV, DC
XIII	2041	17	IA, IL, IN, MI, WI
XIV	2025	17	GA, IN, KY, MA, NC, NJ, NY, OH, PA, TN, VA, WV
XIX	2037	13	AL, AR, GA, IA, IL, IN, KY, LA, MD, MO, MS, NC, OK, SC, TN, VA
XXII	2027	13	KY, LA, MS, OH
XXIII	2028	13	AR, IL, IN, KY, LA, MO, MS, TN

Brood I (1)

Emergences: 2029, 2012, 1995, 1978, 1961.
Cycle: 17-Year.
Stragglers: 2025 (-4), 2028 (-1).
Species: M. septendecim, M. cassini, M. septendecula.
States: TN, VA, WV

Brood II (2)

Emergences: 2030, 2013, 1996, 1979, 1962.
Cycle: 17-Year.
Stragglers: 2026 (-4), 2029 (-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: CT, GA, MD, NC, NJ, NY, OK, PA, VA

Brood III (3)

Emergences: 2031, 2014, 1997, 1980, 1963.
Cycle: 17-Year.
Stragglers: 2027 (-4), 2030 (-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: IA, IL, MO

Brood IV (4)

Emergences: 2032, 2015, 1998, 1981, 1964.
Cycle: 17-Year.
Stragglers: 2028 (-4), 2031 (-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: IA, KS, MO, NE, OK, TX

Brood V (5)

Emergences: 2033, 2016, 1999, 1982, 1965.
Cycle: 17-Year.
Stragglers: 2029 (-4), 2032 (-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: LI NY, MD, OH, PA, VA, WV

Brood VI (6)

Emergences: 2034, 2017, 2000, 1983, 1966.
Cycle: 17-Year.
Stragglers: 2030 (-4), 2933 (-1)
Species: M. septendecim, M. septendecula.
States: GA, NC, SC, WI, OH

Brood VII (7)

Emergences: 2035, 2018, 2001, 1984, 1967.
Cycle: 17-Year.
Stragglers: 2031 (-4), 2034 (-1)
Species: M. septendecim.
States: NY

Brood VIII (8)

Emergences: 2036, 2019, 2002, 1985, 1968.
Cycle: 17-Year.
Stragglers: 2032(-4), 2035(-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: OH, PA, WV and OK

Brood IX (9)

Emergences: 2037, 2020, 2003, 1986, 1969.
Cycle: 17-Year.
Stragglers: 2033(-4), 2036(-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: NC, VA, WV

Brood X (10)

Emergences: 2038, 2021, 2004, 1987, 1970.
Cycle: 17-Year.
Stragglers: 2034(-4), 2037(-1)
Species: M. septendecim, M. cassini, M. septendecula.
States: DE, GA, IL, IN, KY, MD, MI, NC, NJ, NY, OH, PA, TN, VA, WV, DC

Brood XIII (13)

Emergences: 2041, 2024, 2007, 1990, 1973.
Cycle: 17-Year.
Stragglers: 2025(+1)
Species: M. septendecim, M. cassini, M. septendecula.
States: IA, IL, IN, MI, WI

Brood XIV (14)

Emergences: 2025, 2025, 2008, 1991, 1974, 1957.
Cycle: 17-Year.
Stragglers: 2026(+1)
Species: M. septendecim, M. cassini, M. septendecula.
States: GA, IN, KY, MA, NC, NJ, NY, OH, PA, TN, VA, WV

2025 Merch is live!!

Brood XIX (19)

Emergences: 2037, 2024, 2011, 1998, 1985.
Cycle: 13-Year.
Stragglers: 2025(+1), 2028(+4)
Species: M. tredecim, M. neotredecim, M. tredecassini, M. tredecula.
States: AL, AR, GA, IA, IL, IN, KY, LA, MD, MO, MS, NC, OK, SC, TN, VA

Brood XXII (22)

Emergences: 2027, 2014, 2001, 1988, 1975.
Cycle: 13-Year.
Stragglers: 2026(-1), 2032(+4)
Species: M. tredecim, M. tredecassini, M. tredecula.
States: KY, LA, MS, OH

Brood XXIII (23)

Emergences: 2028, 2015, 2002, 1989, 1976.
Cycle: 13-Year.
Stragglers: 2027(-1), 2032(+4)
Species: M. tredecim, M. neotredecim, M. tredecassini, M. tredecula.
States: AR, IL, IN, KY, LA, MO, MS, TN

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Here is a map of all Broods from the Cicadas @ UCONN site. Zoom in and click the pins to see which Brood it represents. (May not work on older devices.)

What specific day will they emerge?

Generally speaking, these cicadas will begin to emerge when the soil 8″ beneath the ground reaches 64 degrees Fahrenheit (Heath, 1968). A nice, warm rain will often trigger an emergence. They can emerge anytime from early April to early June. It all depends on the weather.

What should you look for before they emerge?

Chimneys / Turrets

Look for cicada chimneys a.k.a. turrets. These are structures cicadas build out of the soil, positioned above the hole where they will emerge.

Holes

Look for holes in the diameter of an adult’s finger near the root system of a tree. These are sure signs that cicadas will emerge in the area.

Cicadas Under Stones & Slates

You might discover some cicada nymphs while turning over stones or when performing landscaping chores.

What do they look like when they emerge:

Here is a great video of Magicicada nymphs once they have emerged from the ground:

This is a recently emerged nymph crawling up a tree. Note that its eyes are red.

Once cicadas nymphs have emerged from the ground, they will try to find a tree (or similar vertical surface), and then begin the process of shedding their old nymph skins (ecdysis), expanding their wings, and changing to their adult coloring. Watch this amazing transformation.

How to tell the difference between the seven Magicicada species:

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

The first way is based on the Brood. Take a look at the Brood chart above, and see which species appear with the Brood.

There are 3 basic types of Magicicada: “‘Decims”, “‘Cassini” and “‘Deculas”.

“Decims” aka Pharaoh Cicadas

There are three species in this category:

1. Magicicada septendecim (Linnaeus, 1758). 17-year life cycle. Broods: I-X, XIII, XIV.
2. Magicicada neotredecim Marshall and Cooley 2000. 13-year life cycle. Broods: XIX, XXIII.
3. Magicicada tredecim (Walsh and Riley, 1868). 13-year life cycle. Brood: XIX, XXII, XXIII.

Their songs are very similar, however, when M. neotredecim & M. tredecim emerge in the same location, M. neotredecim’s song takes a higher pitch. Sounds like “Pharaoh, Pharaoh!”.

Visual Appearance:

Male on left; Female on right.

M. neotredecim & M. septendecim have broad orange stripes with more orange than black on their abdomens.

M. tredecim, by comparison, have almost entirely orange abdomens.

M. septendecim cicadas also have an area of orange coloring between the eye and the wing (pronotal extension).

“Cassini” aka Dwarf Cicadas

There are two species in this category:

1. Magicicada cassini (Fisher, 1851). 17-year life cycle. Broods: I-V, VIII-X, XIII, XIV.
2. Magicicada tredecassini Alexander and Moore, 1962. 13-year life cycle. Broods: XIX, XXII, XXII.

Their songs are essentially identical:

M. cassini Call and Court:

Note how it makes a quick burst of sound, followed by some rapid clicks.

Visual Appearance:

Female on left; Male on right.
M. tredecassin & M. cassini cicadas have black abdomens with virtually no orange at all. Orange stripes are possible in the mid-west (important to note for Brood IV).

“Decula”

There are two species in this category:

1. Magicicada septendecula Alexander and Moore, 1962. 17-year life cycle. Broods: I-VI, VIII-X, XIII, XIV.
2. Magicicada tredecula Alexander and Moore, 1962. 13-year life cycle. Broods: XIX, XXII, XXIII.

Their songs are essentially identical:

M. tredecula Call:

Note the “tick, tick, tick” rhythm of the call.

Visual Appearance:

Female on left; Male on right.
M. septendecula & M. tredecula have stripes that feature more black than orange. Otherwise, they’re very similar to M. cassini.

How to figure out if they’re coming to your town?

1. Verify that they’re coming to your state. Check the Magicicada Brood Chart on this page.
2. Check Cicada Brood Maps linked from this page to see if they’re coming to your general area.
3. Check to see if they’re coming to your neighborhood. Good sources include:
   1. Ask someone who lived there 17 (or 13) years before.
   2. Old timers (hint: old timers usually call them locusts).
   3. Check your local Library for old newspaper articles.
   4. Check with a local college: contact the entomology, forestry, or agriculture-related departments.
   5. Your local national, state, county, and town parks department (parks and rec). Some county parks departments plan events around cicada emergences.
4. When will they emerge?
   1. They will emerge sometime in the Spring, for sure.
   2. They typically emerge once the soil 8 inches (20 cm) below the surface gets to 64 degrees Fahrenheit (18 degrees Celcius). At that temperature, they will start digging their tunnels to the surface. After a couple of days with above-ground temperatures near the 80’s F, and after a good rain, they will emerge. Read this paper for more info: Thermal Synchronization of Emergence in Periodical “17-year” Cicadas (Homoptera, Cicadidae, Magicicada) by James Edward Heath, American Midland Naturalist, Vol. 80, No. 2. (Oct. 1968), pp. 440-448.
   3. Cicadas in sunny areas of your yard will emerge before cicadas in shady areas.
   4. Cicadas in the southernmost states will emerge before cicadas in the northern states.
   5. You can try the Cicada Emergence Formula as well.
5. If you don’t want them to damage your young or ornamental trees
   1. Spray them off with a garden hose.
   2. Foil around the trunk (to keep them from crawling up) (thanks Deborah).
   3. Insect barrier tape.
   4. Netting wrapped around & over the tree. “Insect barrier netting”. “Fruit tree covers”.
   5. Bagpipes (no joke, it worked at my friend’s wedding).
   6. Don’t use pesticides – we like all insects (especially pollinating bees).
6. Are you scared of insects?
   • Unlike some other insects & arthropods. cicadas are not poisonous or venomous.
   • Try a hat, an umbrella, a bee-keeper outfit, a suit of armor…
7. They’re coming, and they’re going to ruin my wedding!
   • Try our Cicada Wedding Planner

Questions about the Brood Chart

Question: Why do I have cicadas in my neighborhood, but your chart indicates that I shouldn’t?

Answer: Some possibilities: 1) they are stragglers, periodical cicadas that emerge too soon or late, 2) they are not periodical cicadas but are a different North American species, 3) you live on a continent other than North America, in which case, try one of these pages, or 4) SURPRISE! The U.S. is a big place and some cicada populations have yet to be documented.

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Question: Why don’t I have periodical cicadas in my area, but the information on your website indicates that I should?

Answer: Two possibilities: 1) they went extinct or otherwise died off in your area, or 2) they aren’t everywhere in a state – normally there are large gaps in their range.

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Question: What are stragglers?

Answer: Stragglers can emerge 1 or 4 years early or 1 or 4 years late. Don’t be surprised if you see some periodical cicadas emerge earlier than planned this year. 17-year brood members are most likely to straggle 4 years early, and 13-year brood members are most likely to straggle 4 years late. Straggler probability chart.

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Question: Are there other types of Periodical cicadas?

Answer: There are two known species of periodical cicadas that are not Magicicada . One lives in India and the other in Fiji.

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Question: Why are there no Brood XI, XII, XV, or XVI?

Answer: Perhaps you’ve noticed there are no Broods XI (11), XII (12), XV (15), XVI (16), XVII (17), XVIII (18), XX (20), XXI (21), XXIV (24), etc. Don’t worry about that. They never existed or are extinct (XI, XXI).

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Question: In total, how often do periodical cicadas emerge?

Answer: Over the next 10 years (including 2025), there’s a 90% chance at least one Magicicada brood will emerge somewhere in the U.S.A. Across time, that percentage falls to 77%. Next year (2026) no Broods will emerge. The next 3 year gap (max gap) is 2043-2045.

Example Emergence Timeline

This is an example of a typical cicada emergence. The exact dates will depend on the weather and density of the emergence in your location. Hot weather means an early start and quicker finish to the season — cool weather means a later start and a protracted season.

Here’s an Excel version of the chart. Feel free to use it and adjust it to match your experience.

Or watch the video version:

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More Magicicada websites:

1. For much more information about 17-year cicadas visit Cicadas @ UCONN. The maps on this page link to that site.
2. The Cicada Safari App is available for Android and Apple devices. Use it to see where people are finding cicadas, and to report your sightings.

More Magicicada Information

• Cicada Images and Video for Sharing (by the Media, Educators, or anyone else)
• My best Photos (from Brood VII)
• A quick way to tell the difference between the 7 periodical cicada species
• All cicada questions that are frequently asked.
• Blog posts about Magicicadas (400+ Posts!)
• Learn to tell if a periodical cicada is ready to molt
• The 17 Most Interesting Periodical Cicada Facts
• Signs periodical cicadas are about to emerge.
• Use the Periodical Cicada Emergence Checklist for the Maximum Magicicada Experience
• A video to help you tell the difference between the species