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August 18, 2017

A new genus for North American Cicadetta species: Cicadettana

Filed under: Cicadetta,Cicadettana,David Marshall,Kathy Hill — Dan @ 5:58 am

A photo of a Cicadettana calliope calliope:
Cicadetta calliope calliope (Walker, 1850)

New changes to the classification of the North American cicadas belonging to the genus Cicadetta have been published. The North American Cicadetta were found to be unrelated to the European Cicadetta (including the type species C. montana), so a new genus was needed. The new genus is Cicadettana. Research & paper by David Marshall and Kathy Hill.

Zootaxa page for the paper.

The generic classification of cicadas within the globally distributed tribe Cicadettini (Hemiptera: Cicadidae) has been challenging due to their often conservative morphology. A recent molecular analysis has indicated that the six North American taxa currently classified in Cicadetta are unrelated to the European type species of Cicadetta, C. montana Scopoli. Here we identify a set of diagnostic morphological characters for a new genus, which we distinguish from its closest relatives in Eurasia and Australasia.

April 9, 2013

Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico

Download the PDF here: www.cicadamania.com/downloads/diversity-05-00166.pdf.

We are excited to announce the availability of a document by Allen F. Sanborn and Polly K. Phillips titled Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico. This document features distribution maps for North American cicada species! This document is an excellent companion to The Cicadas (Hemiptera: Cicadoidea: Cicadidae) of North America North of Mexico by Allen F. Sanborn and Maxine S. Heath (link to that book).

Abstract: We describe and illustrate the biogeography of the cicadas inhabiting continental North America, north of Mexico. Species distributions were determined through our collecting efforts as well as label data from more than 110 institutional collections. The status of subspecies is discussed with respect to their distributions. As we have shown over limited geographic areas, the distribution of individual species is related to the habitat in which they are found. We discuss the biogeography of the genera with respect to their phylogenetic relationships. California is the state with the greatest alpha diversity (89 species, 46.6% of taxa) and unique species (35 species, 18.3% of taxa). Texas, Arizona, Colorado and Utah are the states with the next greatest alpha diversity with Texas, Arizona and Utah being next for unique species diversity. Maine, New Hampshire and Rhode Island are the states with the least amount of cicada diversity. Diversity is greatest in states and areas where there is a diversity of plant communities and habitats within these communities. Mountainous terrain also coincides with increases in diversity. Several regions of the focus area require additional collection efforts to fill in the distributions of several species.
Keywords: cicada; distribution; Diceroprocta; Tibicen; Okanagana; Okanagodes; Cacama; Magicicada; Platypedia; Cicadetta

An example of a map from the document:

Example Map

July 25, 2007

Did someone say more Cicadetta calliope?

Filed under: Cicadetta,Paul Krombholz — Tags: — Dan @ 4:38 am

Here’s two more Cicadetta calliope photographed by Paul. Note the different eye colors.

Cicadetta calliope

Cicadetta calliope

C. calliope is found in: AL, AR, CO, FL, GA, IL, IN, IA, KS, KY, LA, MD, MS, MO, NE, NC, OH, OK, SC, SD, TN, TX, VA.

July 24, 2007

Cicadetta calliope

Filed under: Cicadetta,Paul Krombholz — Tags: — Dan @ 5:05 am

Here are 2 photos of a Cicadetta calliope (formerly Melampsalta calliope) taken by Paul Krombholz. Paul caught several individuals in late May in a field of mixed grasses and dicot weeds near Jackson, Mississippi. These little cicadas are around 20 mm long from head to wing tips.

Cicadetta calliope

Cicadetta calliope

C. calliope is found in: AL, AR, CO, FL, GA, IL, IN, IA, KS, KY, LA, MD, MS, MO, NE, NC, OH, OK, SC, SD, TN, TX, VA.