Basic characters include:
Eyes: Described as reddish (rust-colored)
Body: Usually dark, often with some reddish-brown coloration visible
Pronotal Collar: VARIABLE (?) - Described as "bisected" in some specimens with the anterior region being dark and the posterior region an orangish or ochreous color. There is some discrepancy in characteristics of the "pronotal collar" between apache and semicincta....(regarding this trait, these cicadas seem to better fit the original description of D. semicincta - ??). It is believed that many cicadas identified as D. apache exhibiting this pronotal traits - i.e. Hind margin of pronotum or pronotal collar yellow or orange while the anterior portion is dark may be misidentifications!
Mesonotum: Often dark with distinct evidence of reddish brown pattern (variable)
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 species details, REFER back to the following: Diceroprocta apache
It has also been mentioned by some, these cicadas possess traits perhaps "best interpreted" as fitting Diceroprocta semicincta
. In particular, the bisected pronotal collar (anterior region dark and the posterior region light). Although I have collected across parts of this region and have specimens representative of "apache" & "semicincta", there still remains a lot of confusion.
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.
(I interpret "Hind margin of pronotum or collar yellowish, or straw colored" as meaning the entire pronotal collar.)
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 reddish in dried specimens), and membranes at base of all wings darker gray. Usually smaller than apache and with opercula more extended at tips.
(I interpret "Hind margin of pronotum or collar with anterior portion blackish and posterior portion pale" as meaning a transversely bisected pronotal collar. Given that interpretation, then perhaps these cicadas from the Sonoran region do better fit semicincta than apache.)
NOTE: IMAGES under this taxon may be MISIDENTIFIED and ARE in need of review!
Based on the visible characteristics, literature and interpretations of them, I suspect many (if not most) of these images would better fit under the semicincta group.
Based on morphological characteristics, call similarities, and distribution patterns, the following three taxa appear to be closely related & frequently confused.
Another species with a similar call
This particular form - if D. apache - appears to be associated with the Sonoran Desert region of se. Arizona, incl. Pima Co., Santa Cruz Co. and Cochise Co. Interpretation of the physical characters of actual specimens & images and application of the keys have left some questions regarding id.
Discussions with other folks have not resolved the id's with certainty for members in the "apache-semicincta group"