Periodical cicadas (Magicicada septendecim, people call them “locusts”) will emerge in the Finger Lakes area of New York state in 2018, most likely in the June timeframe.
This group of cicadas is called Brood VII (7) and is known as the Onondaga Brood. This brood is shrinking, and will likely be the next periodical cicada brood to go extinct
Here’s an old map of the brood from entomologist C. L. Marlatt:
A more up to date map and more comprehensive information can be found on Magicicada.org.
- 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: June, but perhaps May if it’s a very warm year. 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.
- Where they appeared (last) in 2001: Onondaga and Livingston.
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:
- Brood VII on Magicicada.org. Includes the best map.
- Learn more about Periodical Cicadas, including what to look for before they emerge and how to figure out if they’ll emerge in your town.
- Cicada Frequently Asked Questions
- Periodical cicada emergence checklist
- The 17 most interesting facts about 17 year cicadas
Papers about Brood VII
- The Historical Contraction of Periodical Cicada Brood Vii (Hemiptera: Cicadidae: Magicicada by John R. Cooley, David C. Marshall and Chris Simon. J. New York Entomol. Soc. 112(2–3):198–204, 2004. Link to PDF download.
- Decrease in Geographic Range of the Finger Lakes Brood(Brood Vii) of the Periodical Cicada (Hemiptera: Cicadidae: Magicicada Spp.) by Cole Gilbert and Carolyn Klass. J. New York Entomol. Soc. 114(1–2):78–85, 2006.