Hymetta spp (Erythroneurini) Leafhoppers
I've been curious about some Hymetta spp leafhoppers and decided to dig into the species key since BugGuide doesn't have anything specifically listed. They do reference the Dmitriev 3I Interactive Keys and Taxonomic Databases, but I was able to find a paper with more details. (Cited at the bottom of this post.) To simplify things, I just pulled out what I thought was important info.
To summarize, the key to species is strictly limited to genitalia characters. Wing patterns are so similar between the species, that it sometimes comes down to the density of red spots, as in H. balteata and H. anthisma.
Genus Hymetta
(Extract of physical description)
Dorsum yellow or white, with reddish or brown color pattern; vertex, pronotum, and mesonotum pale, apex of scutellum black; forewing with characteristic numerous irregular red or brownish dots, with or without brown crossband; without dark spot at costal margin; apical cell II without distal spot; inner apical cell without brown spot.
H. kansasensis: Length 3.2–3.5 mm. Coloration as described for genus. Distribution: Central and southeastern USA. (Not showing TX)
H. balteata: Length 3.1–3.4 mm. Coloration variable, either as described for genus or paler overall. Distribution: Central and eastern USA (Incl TX)
H. anthisma: Length 3.3–3.6 mm. Coloration typical for genus, wings usually densely covered with red dots. Distribution: Central and eastern USA. (Incl TX)
H. trifasciata: Length 3–3.4 mm. Coloration as described for genus. Distribution: Central and eastern USA. (Incl TX)
H. arizoniana: Length 3.3–3.7 mm. Coloration typical for genus. Distribution: Arizona.
Source:
Review of the New World Erythroneurini (Hemiptera: Cicadellidae: Typhlocybinae) I. Genera Erythroneura, Erasmoneura, Rossmoneura, and Hymetta
Dmitriev, Dmitry A.; Dietrich, Christopher H.
2007
https://www.ideals.illinois.edu/bitstream/handle/2142/26473/Bulletin38%282%29.pdf?sequence=2&isAllowed=y
I also reviewed Fairbairn 1928 which lists physical characters in the species key, but I assume to revision found them to be unreliable.
Fairbairn, Vera M. "The Genus Hymetta (Homoptera, Cicadellidae)." Journal of the Kansas Entomological Society 1, no. 4 (1928): 84-92. http://www.jstor.org/stable/25081244.
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