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May 31, 2017

Neotibicen similaris apalachicola, a new cicada subspecies

Filed under: David Marshall,Kathy Hill,Neotibicen,United States — Dan @ 6:28 am

A new subspecies of the Similar Dog-Day Cicada has been described in the paper A new Neotibicen cicada subspecies (Hemiptera: Cicadidae) from the southeastern USA forms hybrid zones with a widespread relative despite a divergent male calling song by David C. Marshall and Kathy B. R. Hill (Zootaxa, Vol 4272, No 4). The cicada is named Neotibicen similaris apalachicola.

This cicada lives in Florida, Georgia & Alabama, and hybridizes with the other Similar Dog-Day Cicada sub-speces, Neotibicen similaris similaris. The document is available on biotaxa.org.

A morphologically cryptic subspecies of Neotibicen similaris (Smith and Grossbeck) is described from forests of the Apalachicola region of the southeastern United States. Although the new form exhibits a highly distinctive male calling song, it hybridizes extensively where it meets populations of the nominate subspecies in parapatry, by which it is nearly surrounded. This is the first reported example of hybridization between North American nonperiodical cicadas. Acoustic and morphological characters are added to the original description of the nominate subspecies, and illustrations of complex hybrid song phenotypes are presented. The biogeography of N. similaris is discussed in light of historical changes in forest composition on the southeastern Coastal Plain.

You will find song samples and maps on the Insect Singers website.

I think this is an image of the new cicada:

March 25, 2017

New Cicada: Berberigetta dimelodica

Filed under: Berberigetta,Vera L. Nunes,Video — Tags: — Dan @ 10:24 am

Thanks to Vera L. Nunes for letting us know about a newly described/discovered cicada named Berberigetta dimelodica.

Berberigetta is also a new genus, belonging to the Tribe Cicadettini.

See and listen to it in this YouTube video:

The paper than describes the species is:

Gonçalo João Costa, Vera L. Nunes, Eduardo Marabuto, Raquel Mendes, Telma G. Laurentino, José Alberto Quartau, Octávio S. Paulo, Paula Cristina Simões. 2017. Morphology, songs and genetics identify two new cicada species from Morocco: Tettigettalna afroamissa sp. nov. and Berberigetta dimelodica gen. nov. & sp. nov. (Hemiptera: Cicadettini). Zootaxa. Vol 4237, No 3.

Link to the Zootaxa page for the document.

And here’s a quote of the Abstract:

Morocco has been the subject of very few expeditions on the last century with the objective of studying small cicadas. In the summer of 2014 an expedition was carried out to Morocco to update our knowledge with acoustic recordings and genetic data of these poorly known species. We describe here two new small-sized cicadas that could not be directly assigned to any species of North African cicadas: Tettigettalna afroamissa sp. nov. and Berberigetta dimelodica gen. nov. & sp. nov. In respect to T. afroamissa it is the first species of the genus to be found outside Europe and we frame this taxon within the evolutionary history of the genus. Acoustic analysis of this species allows us to confidently separate T. afroamissa from its congeners. With B. dimelodica, a small species showing a remarkable calling song characterized by an abrupt frequency modulation, a new genus had to be erected. Bayesian inference and maximum likelihood phylogenetic analyses with DNA-barcode sequences of Cytochrome C Oxidase 1 support the monophyly of both species, their distinctness and revealed genetic structure within B. dimelodica. Alongside the descriptions we also provide GPS coordinates of collection points, distributions and habitat preferences.

March 2, 2017

Quesada gigas out in Texas

Filed under: Mike Quinn,Quesada — Dan @ 8:05 pm

Update: Mike’s website Giant Cicada / Chicharra Grande has records of the early calling. 3 to 4 months early!

Mike Quinn, @EntoMike on Twitter, reported on February 22nd that Quesada gigas have been singing in Texas.

Listen to their song:

Song type: Call

Download

Source: ©Insect Singers | Species: Q. gigas

Quesada gigas (Olivier, 1790)
Photo credit: Photo by Leonardo Milhomem

More information about Quesada gigas.

February 26, 2017

New species of Megatibicen: Megatibicen harenosus

Filed under: Jeffrey A. Cole,Megatibicen,Tibicen — Dan @ 6:32 am

A new species of Megatibicen, named Megatibicen harenosus sp. n., has been described by Jeffrey A. Cole. It lives in the Mescalero-Monahans shinnery sands areas of New Mexico and Texas. It is very similar to Megatibicen (Neotibicen, Tibicen) tremulus, which itself looks a lot like dorsatus and dealbatus.

Here’s a link to the announcement of the paper. This is the abstract:

Megatibicen harenosus sp. n. is described from the Mescalero-Monahans shinnery sands of New Mexico and Texas, U.S.A. The new species is diagnosed from similar species, especially M. tremulus which it resembles closely, by male genital morphology, color pattern, calling song, and ecology. Seven characters from the male calling song are described from analysis of field recordings, of which all four temporal song characters are significantly different from M. tremulus. With one of the most southwestern distribution of any Megatibicen species, M. harenosus is a new addition to the rich, endemic, and understudied Mescalero-Monahans shinnery sands biota. The possibility that M. harenosus and M. tremulus are sister species is raised. The ecological, biological, and evolutionary species concepts support species status for M. harenosus, and an hypothesis of peripatric speciation in peripheral isolation is advanced.

There is a sample of this cicada’s song on the Insect Singers website. Check it out.

December 4, 2016

Gigatibicen, Ameritibicen, Paratibicen

Filed under: Lyristes,Megatibicen,Neocicada,Tibicen,Young June Lee — Dan @ 11:10 am

Gigatibicen
For some reason I associate “Giga” with “Gigabytes” and storage media like Flash drives, which explains this joke image.

Over the past two years there have been quite a few updates to the genera of the cicadas that were organized under the Tibicen genus earlier this decade.

The most recent paper by Young June Lee introduces the genera Gigatibicen, Ameritibicen, and Paratibicen 1. Earlier this year there was a paper by Allen Sanborn and Maxine Heath that introduced the genus Megatibicen 3, and in 2015 there was a paper by Kathy Hill and others that introduced Neotibicen and Hadoa 2.

See the end of the article for links to these papers, and related articles on CicadaMania.com.

The table below shows the names/synonyms (sub species have been removed to keep the table compact):

(Tibicen circa 2014) Hill (2015)2 Sanborn, Heath (2016)3 Lee (2016)1
Tibicen auletes Neotibicen auletes Megatibicen auletes Gigatibicen auletes
Tibicen auriferus Neotibicen auriferus no change no change
Tibicen canicularis Neotibicen canicularis no change no change
Tibicen cultriformis Neotibicen cultriformis Megatibicen cultriformis Ameritibicen cultriformis
Tibicen davisi davisi Neotibicen davisi no change no change
Tibicen dealbatus Neotibicen dealbatus Megatibicen dealbatus Ameritibicen dealbatus
Tibicen dorsatus Neotibicen dorsatus Megatibicen dorsatus Ameritibicen dorsatus
Tibicen figuratus Neotibicen figuratus Megatibicen figuratus Ameritibicen figuratus
Tibicen latifasciatus Neotibicen latifasciatus no change no change
Tibicen linnei Neotibicen linnei no change no change
Tibicen lyricen engelhardti Neotibicen lyricen no change no change
Tibicen pronotalis pronotalis Neotibicen pronotalis Megatibicen pronotalis Ameritibicen pronotalis
Tibicen pruinosus fulvus Neotibicen pruinosus no change no change
Tibicen resh Neotibicen resh Megatibicen resh Gigatibicen resh
Tibicen resonans Neotibicen resonans Megatibicen resonans Gigatibicen resonans
Tibicen robinsonianus Neotibicen robinsonianus no change no change
Tibicen similaris Neotibicen similaris no change Paratibicen similaris
Tibicen superbus Neotibicen superbus no change no change
Tibicen tibicen australis Neotibicen tibicen no change no change
Tibicen tremulus Neotibicen tremulus Megatibicen tremulus Ameritibicen tremulus
Tibicen winnemanna Neotibicen winnemanna no change no change
Tibicen bifidus Hadoa bifida no change no change
Tibicen chiricahua Hadoa chiricahua no change no change
Tibicen duryi Hadoa duryi no change no change
Tibicen inauditus Hadoa inaudita no change no change
Tibicen longioperculus Hadoa longiopercula no change no change
Tibicen neomexicensis Hadoa neomexicensis no change no change
Tibicen parallelus Hadoa parallela no change no change
Tibicen simplex Hadoa simplex no change no change
Tibicen texanus Hadoa texana no change no change
Tibicen townsendii Hadoa townsendii no change no change
  • 1 Lee, Y.J. 2016. Description of three new genera, Paratibicen, Gigatibicen, and Ameritibicen, of Cryptotympanini (Hemiptera: Cicadidae) and a key to their species Journal of Asia-Pacific Biodiversity, Volume 9, Issue 4, 1 December 2016, Pages 448–454. Link to Paper.
  • 2 Hill, et al. 2015. Molecular phylogenetics, diversification, and systematics of Tibicen Latreille 1825 and allied cicadas of the tribe Cryptotympanini, with three new genera and emphasis on species from the USA and Canada (Hemiptera: Auchenorrhyncha: Cicadidae), Zootaxa, Volume 3985, Issue 2, Pages 219–251. Link to Paper
  • 3 Sanborn A.F., Heath, M.S. 2016. Megatibicen n. gen., a new North American cicada genus (Hemiptera: Cicadidae: Cicadinae: Cryptotympanini), Zootaxa, Volume 4168, Issue 3. Link to Paper
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