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Horesidotes cinereus - female

Horesidotes cinereus - Female
Saguaro National Park--west section, Pima County, Arizona, USA
August 9, 2012
Size: 20 mm
Scared up by a lizard, this jumped into a patch of prickly-pear. I think I have this ID correct, but this is a tricky one. Confirmation appreciated! Size estimated.
Compare similar images here:

It is correct
Two most easily confused with it are Acantherus [with longer wider antennae, usually white at the tip; thorax is different on top; and with more slender legs that often show some red color] and Psoloessa texasna [with thicker hind femora, slightly stockier build, and somewhat more vertical face].

I always have a hard time catching / photographing Horesidotes. They dive into the brush (or cacti), are hard to see there, and are very agile, alert things.

...for confirmation. These are very tricky, and we just have a few photos here. I lucked out on a brief visit to Arizona, grasshopper-wise!

and, check out...
...the etymology of the genus name!

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