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. 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.
A pair of Magicicada septendecim:
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.
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 XXIIstragglers 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.
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.
There is a new paper out about Brood XXII, titled Evolution and Geographic Extent of a Surprising Northern Disjunct Population of 13-Year Cicada Brood XXII (Hemiptera: Cicadidae, Magicicada). I helped with the field work for this paper, traveling through Ohio and Kentucky with Roy Troutman, recording the locations of periodical cicadas.
Brood XXII, a brood of Magicicada periodical cicadas with a 13-year lifecycle, exists in Louisiana & Mississippi, and Ohio & Kentucky with no geographic connection between them (the two groups are geographically isolated). The paper discusses the similarities and differences between the two groups.
Citation for the paper:
Gene Kritsky, Roy Troutman, Dan Mozgai, Chris Simon, Stephen M Chiswell, Satoshi Kakishima, Teiji Sota, Jin Yoshimura, John R Cooley; Evolution and Geographic Extent of a Surprising Northern Disjunct Population of 13-Year Cicada Brood XXII (Hemiptera: Cicadidae, Magicicada), American Entomologist, Volume 63, Issue 4, 12 December 2017, Pages E15–E20, https://doi.org/10.1093/ae/tmx066
Four new species of Semia cicadas living in Vietnam were described in 2017: Semia magna, Semia spiritus, Semia pallida, and Semia albusequi.
Here’s the details on the paper:
Title: Descriptions of four new species of Semia Matsumura (Hemiptera: Cicadidae: Psithyristriini) from Vietnam, with a key to the species of Semia Authors: David Emery, Young June Lee, & Thai Pham. Year: 2017 Publication: Zootaxa. 4216. 153-166. Document link:https://biotaxa.org/Zootaxa/article/view/zootaxa.4216.2.2 Abstract:
This paper provides descriptions of four new species of the genus Semia Matsumura, 1917 from Vietnam: Semia magna sp. nov., Semia spiritus sp. nov., Semia pallida sp. nov., and Semia albusequi sp. nov. A key to the 13 species of Semia is provided.
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Update: a reminder that the World Cup Cicada will be back in 2018 (as will the World Cup)!
Chremistica ribhoi Hajong and Yaakop 2013 is a cicada that lives in the Ri-Boi district of India. C. ribhoi is known as the World Cup cicada because it emerges every four years in synch with the World Cup association football (soccer) tournament.
C. ribhoi is known locally as Niangtasar. It only lives in a very small area: Saiden village (N 25’51’37.1’’; E 091’51’16.3”) and Lailad (N 25’55’09.7” E 091’46’25.0”) situated on the northern part of the state of Meghalaya. The cicada can be identified by the presence of two white spots on either side of the anterior abdominal segment.
Researcher Sudhanya Hajong is gearing up to study these cicadas, since this is the year they will emerge. Ri-Boi area locals use these cicadas as a food source and fish bait. These cicadas are threatened by deforestation (cutting down forests for agricultural purposes). Sudhanya plans to educate locals about conserving them and protecting their habitat.
Most of the facts in the post come from the following document: Hajong, S.R. 2013. Mass emergence of a cicada (homoptera: cicadidae) and its capture methods and consumption by villagers in ri-bhoi district of Meghalaya. Department of Zoology, North-Eastern Hill University, Shillong – 793 022, Meghalaya, India.
Thanks to Chris Simon of The Simon Lab at UCONN for providing the information that made this post possible.
Note: the image in this article is not an accurate depiction of C. ribhoi. :)
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There’s a new paper from Sarah E. Banker, Elizabeth J. Wade, and Chris Simon titled “The confounding effects of hybridization on phylogenetic estimation in the New Zealand cicada genus Kikihia”.
Here’s the highlights:
Tested validity of an unexpected “Westlandica” mitochondrial clade with nuclear loci.
Phylogenetic signal and pattern differ dramatically among nuclear genes but always weak on South Island.
No conflict between nuclear concatenation vs species trees from multiple methods.
Three nuclear species trees support major North Island but not South Island mitochondrial clades.
Here’s the citation information:
Sarah E. Banker, Elizabeth J. Wade, Chris Simon, The confounding effects of hybridization on phylogenetic estimation in the New Zealand cicada genus Kikihia, Molecular Phylogenetics and Evolution, Volume 116, November 2017, Pages 172-181, ISSN 1055-7903, https://doi.org/10.1016/j.ympev.2017.08.009.
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