I have the s-pecimens, so I could make some close up pics of the terminalia. Katja was sweeping Pinus monophylla (which would support T nevadense), but also oak and other shrubs... and no we did not find other specimens...

That would be great, Martin, if you could get good terminalia photos (i.e. dorsal: including terminal tergite; ventral: including subgenital plate; and lateral; showing relative size & shape of cerci). Males have much more easily interpreted diagnostic structure as far as species ID goes, but often you gotta take what you can get :-)

I should have wrote to you sooner (unfortunately, I can be a slow poke!). Hope they haven't shriveled or discolored too much over the last week or so.

Seems like an interesting desert habitat you visited. Wish I could have been there! :-)

I will try my best, but might take a while... rather busy in the moment...

And, for female Timema, terminalia don't provide as much diagnostic value as they do for males. So it's not so pressing of an issue (although, if this turned out to be a parthenogenetic species, it would become more central...but that doesn't seem particularly likely at this point).

Whatever you can do photo-wise, whenever you can...will be appreciated, as always.

PS: Hope the many denizens of your wonderful menagerie are doing well.  ¡¡Viva Anomalocaris!! :-)

So I added some more pics... hope they help... Where did you find the Anomalocaris pic!

Those are wonderfully clear photos for comparing with the standard views for female terminalia as figured in the main references!!

The two closest known Timema species to your McCullough Mnts locale are T. nevadense, which is fairly nearby to the west; and T. coffmani which is further away and across the Colorado River in AZ.

I made an additional post of three collages for comparing the figured terminalia for both those species to the female appearing in your photos:

       

Unfortunately, it seems there's no coherent match up with a single one of these two species. And looking at the diagrams for other species, I found no better alternatives.

I don't know whether this is due to intra-species variation in the shapes of the various structures involved, or if perhaps your post is an undescribed species. Timema can be tricky, especially if one only has female specimens to work with. And there are likely a number of undescribed taxa out there. At any rate, you've documented the terminalia quite well, which if nothing else is a good exemplar and may help in the future.

(PS: The Anomalocharis pic was drawn by some local aboriginal kids I met while botanizing on a remote Pacific island ;-) ;-)

Aaron,
nice comparison... the ventral view is really more like coffmani, very strange, I thought it is a clear nevadense, just from the location! Very interesting. We have the specimens now in our freezer, so if somebody is doing some more genetic work, they are available...
Thanks so much for your effort and work you put in there, and thanks for the drawing!
Martin