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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

November 25, 2012

Cacama aka Cactus Dodgers

Filed under: Cacama — Tags: , — by @ 11:03 am

Cacama valvata (female)

A Cacama moorei (female) photo taken by Adam Fleishman.

Cacama is a genus of cicadas, known as Cactus Dodgers, found in Mexico and Southwestern United States. They are known for their affinity for cacti like prickly pear & cholla, and are most likely named Cactus Dodgers for their ability dodge the needles of their favorite plants. They are primarily black, gray, white, and beige colored; well camouflaged for the desert.

The two most common species seem to be Cacama moorei and Cacama valvata. The best way to tell them apart is C. moorei have a lot of orange on their ventral side.

Eyes Gray to golden beige
Ventral side Mostly white, heavy pruinose
Legs Black to golden beige
Dorsal side Gray to Black, with rust, golden or beige highlights. Prominent white pruinose along the sides of the mesonotum, and the 1st tergite (dorsal abdominal segment) of the abdomen.
Wings hyaline, with black to golden beige viens

According to BugGuide there are 12 species of Cacama: C. californica , C. carbonaria, C. crepitans, C. collinaplaga, C. dissimilis, C. furcata, C. longirostris, C. maura, C. moorei, C. pygmaea, C. valvata and C. variegata.

Cacama was the lord of the Aztec kingdom of Tezcuco (see The History of the Conquest of Mexico, by W.H. Prescott), who met his end at the hands of Spanish conquistadors. Cacama lives on in these winged desert treasures.

Some Cacama links:

The Insect Singers website has the song of a Cacama valvata.

A nice photo of a Cacama furcata taken in New Mexico.

A slide show of Cacama moorei photos found on Flickr:


June 10, 2012

Various cicada species emerging in the United States

Brood I Magicicada periodical cicadas continue to emerge in VA, WA and TN. Magicicada stragglers belonging to other broods, continue to emerge as well.

Neocicada hieroglyphica are around as well, particularly in Florida [link goes to image].

Neocicada hieroglyphica  adult
Example of a Neocicada hieroglyphica.

Cicadas belonging to the genus Cacama (Cactus Dodgers), including the Cacama valvata are emerging in south-western states like New Mexico and Arizona [link goes to image].

Cacama valvata (female)
Example Cacama valvata.

Cicadas belonging to the genus Tibicen are emerging in warmer areas of the United States. Joe Green found a Tibicen tibicen (possibly Tibicen tibicen australis [see Insect Singers site for song and description]) in Florida. Tibicen superbus [image] are emerging in Southern states as well.

Tibicen superbus
Example of a Tibicen superbus

Cicadas belonging to the genus Platypedia are emerging in Califorina [link goes to image]. See also Hello, my tree is clicking.

Cicadas belonging to the genus Okanagana are emerging in California [link goes to image].

August 26, 2006

Cacama valvata Cicada

Filed under: Cacama — Tags: — by @ 1:56 am

Adam Fleishman has captured some amazing photos of Cacama valvata. They were taken in Tucson, AZ. Elevation 2,450 ft.

See more of Adam’s work at his web site: Cometmoth Sight and Sound .

Cacama valvata

Correction: previously we said this was an Apache cicada. It is, in fact, a Cacama valvata.

An article on Cacama cicadas.