High altitude longhorn - Prionus

I sure hope you collected it.

First impression, it is an undescribed species.

… Bruce Tilden, 8 August, 2021 - 9:21pm

I got two,

one for me and usually one for UNM. If needed what other photo angle would help with an ID?

… Mark S. Romero, 8 August, 2021 - 9:30pm

Another helpful angle

would be a more dorsal shot of the pronotum, to get a better look at the shape of the lateral margins.

… Robert Androw, 8 August, 2021 - 9:52pm

Prionus sp., female

I don't immediately recognize the species, but I predict it will be something cool, when IDd...

… Robert Androw, 8 August, 2021 - 5:46pm

Moved

Moved from Prioninae.

… Robert Androw, 8 August, 2021 - 5:45pm

This is a female Prionus with

This is a female Prionus with 13 segmented antennae. It does not key out to any US species in Santos-Silva, et al. (2016) revision of Western Hemisphere Prionus. It would key to Prionus lecontei in Chemsak's illustrated revision. But, as others noted, it is unlikely to be that species since it is way outside the range and obviously doesn't fit due to the small size (half the size of the smallest recorded females of that species) and other characters. It's a mystery!

… Steven Lingafelter, 8 August, 2021 - 10:23pm

This may be

a female of Prionus simplex, but I'm going from memory and would need to compare it to the single specimen I have in my collection. Can't remember the number of antennomeres in simplex. I will try to check it as soon as I can...

… Robert Androw, 8 August, 2021 - 11:05pm

Possibly a female of Prionus integer...

I checked my specimens against this and ruled out P. simplex, as the female of that species has 12 antennomeres - at least in the single example I have. I do have a couple of P. integer females from Colorado, and both have 13 antennomeres. They greatly resemble this specimen, although a better shot of the pronotum of this one would be good to be able to compare to my integer specimens.

… Robert Androw, 9 August, 2021 - 12:12am

Pronotum

photo posted.

… Mark S. Romero, 9 August, 2021 - 9:52am