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Species Diceroprocta apache - Citrus Cicada

Cicada - Diceroprocta apache Ubiquitous cicadas - Diceroprocta apache cicada III - Diceroprocta apache Cicada -  - Diceroprocta apache - male Diceroprocta apache Hanging Cicada - Diceroprocta apache Cicada - Diceroprocta apache Deep Canyon-0BG.1964.J01 - Diceroprocta apache
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 Fidicini
Genus Diceroprocta (Scrub Cicadas)
Species apache (Citrus Cicada)
Synonyms and other taxonomic changes
Diceroprocta apache (Davis)
Orig. Comb: Tibicen apache Davis, 1921
Basic characters include:
Eyes: Described as reddish (rust-colored)
Body: Usually dark, often with some reddish-brown coloration visible (var. ochroleuca is a reddish color morph characteristic of the more northern and western populations)
Pronotal Collar: in the literature, described as entirely yellowish or straw colored; the pronotal collar appears entirely bone-colored or tan, esp. those north of Tucson, AZ ranging north into s. Utah & se. Calif. In contrast, some cicadas identified as D. apache often exhibit VARIABLE pronotal traits - i.e. Hind margin of pronotum or pronotal collar yellow or orange while the anterior portion is dark (as described in semicincta ?) - such cicadas may be misidentifications!

Mesonotum: VARIABLE - Described as dark with some evidence of reddish-brown pattern
Abdomen: As in similar species (compare with D. semicincta), the terminal segments possess a pruinose band that is typically incomplete.
Opercula: Described as pointed with the terminal points being subparallel or slightly curved (the terminal points of opercula are NOT as drawn out or strongly curved inwards towards the midline as in semicincta)

There have been several poorly defined "ssp." and "variations" described (none thought to be taxonomically valid).
For details, REFER to the following:

In conversation with several cicada specialists, I have discovered there is debate as to the taxonomic organization, identification of the various D. apache forms and associated distributions. Kathy Hill and I discussed this group on several occasions and there doesn't appear to be a "nice descriptive recipe" suited for all populations and forms of this species.

NOTE: Some of the IMAGES under this taxon may be MISIDENTIFIED and in need of review!
Based on morphological characteristics, call similarities, and distribution patterns, the following three taxa appear to be closely related and are easily confused.

Frequently confused.
Another species with a similar call
For details on cinctifera, apache & semicincta, please refer to the following:
sw US (CA-AZ-UT-NV) (BG data)
Most information suggests Diceroprocta apache has a greater distribution than does D. semicincta.
Reports and collection records place D. apache in n. Mexico, across most of Arizona, s. Utah, s. Nevada and se. California.

It is important to mention, given misidentifications and confusions regarding separation of similar taxa, the distributions of several of these western Diceroprocta species remains suspect and incomplete.
Helpful hints from Gerry Bunker based on a Davis paper.
Researching the differences between the three most common species of Diceroprocta to be found in Arizona, I found a paper published by William T. Davis in 1928 that describes all three.

All three species have triangular shaped opercula in males extending about half-way the distance of the underside of the abdomen.

W.T. Davis writes:

Diceroprocta cinctifera
Opercula with the outer edges nearly parallel to each other; 8th segment and middle base of tergum pruinose. Collar and costal margin of fore wing usually bright orange in color.

Diceroprocta apache
Hind margin of pronotum or collar yellowish, or straw colored; eyes reddish and membranes at base of both pair of wings pale; often straw-colored. Pubescence at base of abdomen golden.

Diceroprocta semicincta
Hind margin of pronotum or collar with anterior portion blackish and posterior portion pale. Eighth segment pruinose, and pubescence at base of abdomen silvery. Eyes darker than in apache (not redish in dried specimens), and membranes at base of all wings darker gray. Usually smaller than apache and with opercula more extended at tips.


Additional info - much of it is in support of Gerry's observations:

I may well be wrong (and would like to know if I am), but here's a quick break down of basics as have been conveyed to me via. a couple cicada specialists

...and from my own observations (incl. call), I would not be shocked if 2 or more of these "currently distinct taxa" are in fact conspecific. Their morphological & audal similarities and distribution patterns may be clinal.

I believe the core of id problems for these species is rooted in misinterpretation of the older literature (incl. morphology, call and distribution). I question the wording & interpretation(s) myself.

Three taxa and lots of confusion.
Diceroprocta cintifera
*Diceroprocta apache
*Diceroprocta semicincta
*"Supposedly", based on collection efforts and records, these 2 taxa are more common in southeastern Arizona (per. comm.) - ?

All three are easily confused.
There has been some debate regarding several characters used for id - incl. but not limited to the following: coloration of the pronotal collar, whether the collar is solid or divided, opercula shape and pruinosity + the Question...How do these traits relate to these three taxa and across their ranges (esp. in areas of overlap).

Initially, my understanding was as follows:

"D. apache" specimens north of Tucson (Maricopa Co., AZ into Calif.)seem to have solid pronotal collars (as pictured) and "straight" or "non-convergent" pointed opercula (morphology and associated calls of specimens reviewed matched). In contrast, Cicadas identified (by several folks) as "D. apache" from Tucson & south of Tucson often have a bisected pronotal collar (anterior half is dark while the posterior half is light). Despite this difference, the opercular traits (being nonconvergent) and associated calls hold true.

"D. semicincta" (said to be the most common species in the immediate Tucson area) usu. has a solid colored pronotal collar (some debate??) and convergent opercula. Regarding apache and semicincta, several of the morphological traits can break down and may become ambiguous; unfortunately, deciding on differences between the two can be subject to interpretation. However, the pointed tips of the opercula in semicincta are convergent (the tips noticeably curve inward towards one another). Given the other variables, this character in opercula shape may be the "ONLY morphological constant" distinguishing semicincta from apache in areas of sympatry.

Important note - D. apache, semicincta and cinctifera DO NOT differ significantly from one another in call, if at all (in fact, it is not likely to distinguish these taxa based on call alone). The congruence in call has raised questions concerning their taxonomic relationship.

In areas of question, identification of specimens may require combining the morphological attributes, habitats, range and calls (id. of specimens associated with particular calls and habitats is strongly recommended).

Great site for audal recordings of western cicadas.
Dave & Kathy have done a wonderful job on this site and lots more to come incl. pictures and range maps!
See Also
Based on morphological characteristics, call similarities, and distribution patterns, these three taxa appear to be closely related.

Frequently confused.

Another species with a similar call