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Species Hadoa simplex

Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Auchenorrhyncha (True Hoppers)
Infraorder Cicadomorpha (Cicadas, Spittlebugs, Leafhoppers, and Treehoppers)
Superfamily Cicadoidea (Cicadas)
Family Cicadidae (Cicadas)
Subfamily Cicadinae
Tribe Tacuini
Genus Hadoa
Species simplex (Hadoa simplex)
Synonyms and other taxonomic changes
First described in 1941 by William T. Davis as Tibicen bifidus simplex
Tibicen simplex
Range
Seems to occupy the range west of T. bifidus and centralized (possibly restricted to?) southern Arizona and n. Mexico.
Remarks
Refer to:


The Southwestern Naturalist 56(3):363-368. 2011
doi: 10.1894/F09-JC-44.1

A relatively small member of the Genus Tibicen and more closely related to members within the western complex of smaller species.

Described as similar to Tibicen bifidus to which it was once considered to be a subspecies.

IMPORTANT observation!
There is some speculation that simplex is nothing more than a variety of bifidus found west and south of the nominate form...and may not be subspecific. There have been reports of specimens collected from within populations exhibiting either the bifid = "cleft or divided male genitalia called the uncus or the simple undivided type (=simplex). Perhaps these differences in genitalic minutia are simply expressions of regional variations (??)
See Also

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"SMALL Tibicen Species"
Several of these smaller and "mostly western" species appear quite divergent from the eastern members and may deserve separate Generic status. (Additional work is much needed to better understand the species' relationships within this Genus.)





NOTE: As mentioned, the above arrangement is "hypothetical" and much of it is based on older classification schemes (+ per. observ. and per. comm.). Additional genetic analysis and detailed morphological studies may reveal different taxonomic relationships.
Print References
Refer to:
The Southwestern Naturalist 56(3):363-368. 2011
doi: 10.1894/F09-JC-44.1

Elevation of a Subspecies of tibicen (Hemiptera: Cicadoidea: Cicadidae) to a Full Species

Allen F. Sanborna,* and Polly K. Phillipsb
Department of Biology
11300 NE Second Avenue, Barry University, Miami Shores, FL 33161
(AFS) 17446 SW 33rd Court, Miramar, FL 33029 (PKP)
*Correspondent: asanborn@mail.barry.edu
Associate Editor was Jerry L. Cook

Abstract
The Tibicen bifidus species complex is composed of T. b. bifidus (Davis, 1916) and T. b. simplex Davis, 1941. We analyzed biogeographical, morphological, and physiological parameters to determine if these taxa represent two species. There are significant differences in biogeography, as well as selection of host-plant and several morphological characteristics. Comparisons of their calling songs approach statistical significance. Sound-pressure level of alarm calls and thermal responses of the two taxa do not differ significantly. Our data suggest that the two taxa represent distinct species.