Moved from Idiostatus.

Idiostatus aequalis seems a likely candidate, based on appearance. Other species recorded from the area include: I. hermanii, inermis, inyo, and wymorei. I. major occurs not too far to the north. Not a clue how to tell females apart, there aren't enough photos and descriptions published to make this an easy task without associated males.

Moved from Shield-backed Katydids.

Moved from ID Request.

I hesitate to even try on shield-backs from California, but the very straight ovipositor here is kind of unusual. I think it may be a species of Idiostatus, but I'm certainly not sure.