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Photo#263930
Tan grasshopper nymph - Trimerotropis pallidipennis - male

Tan grasshopper nymph - Trimerotropis pallidipennis - Male
Desert Hot Springs, Riverside County, California, USA
April 1, 2009
Size: around 15 mm?
Trimerotropis pallidipennis?

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Tan grasshopper nymph - Trimerotropis pallidipennis - male Tan grasshopper nymph - Trimerotropis pallidipennis - male

Moved

no, Trimerotropis
Notice that there are two notches. Also, the ridge is higher on Dissosteira. This could easily be T. pallidipennis, they vary a LOT in coloration. There are a few other species that it might be as well though. This is a nearly mature male, and if you could wait around for a few more days, maybe a week, you'd probably get a certain answer :)

Since you found adults there, guilt by association ups the likelihood of T. pallidipennis being right too.

With that notch
in the pronotum check out Dissosteira carolina. I was told it is diagnostic, but I have always found the sp outside the real desert habitat.
T. pallidipennis nymphs do not look like that. They are all around here (Tucson) - I'll try to get a shot of a comparable instar

 
Thanks Margarethe,
it certainly does look the same. The notch looks a little different to me, though. The one above comes straight down while the D. carolina I looked at had more of an angle to the notch. Maybe I'm over analyzing? I'd like to see what David F. thinks.

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