White setose, gray-black elongated beetle with mostly brown elytra and antennae longer than body - Mastoremus

a grad

student is currently revising this group

… Donald S. Chandler, 1 August, 2021 - 8:52pm

excellent... thanks

… v belov, 1 August, 2021 - 9:08pm

Moved

Moved from Eurygeniinae.

… v belov, 1 August, 2021 - 8:30pm

Don Chandler says,

"It is an undescribed species near or in the genus Mastoremus. There appear to be several species in the Utah area of this group."

Moved from Fungus, Bark, Darkling and Blister Beetles.

… v belov, 9 January, 2020 - 9:39am

sounds like I have work to do :)

… Blaine Mathison, 9 January, 2020 - 9:48am

DSC has elaborated:

"Yes, they are very lepturine-looking. Females have abbreviated elytra and are a bit stouter. They key right to Mastoremus, but are not of the typical shape of the described species - a lot thinner, but with the correct characters. Mastoremus is a Great Basin group, and males have long clearly serrate antennae. I haven't looked seriously enough at them to decide whether they should be placed as a new genus, but since the eurygeniines are a bit over-split at this time, I would be cautious in doing so, and have not convinced myself they are truly different enough."

… v belov, 9 January, 2020 - 9:59am

Magnificent detective work, =V=, Blaine, and Bruce !

With special thanks to Don Chandler !!

… Emile, 12 January, 2020 - 10:31am

yeah, I got an email from Don

since I appear to live right in the heart of their diversity!

… Blaine Mathison, 9 January, 2020 - 10:43am

hmmm... let me meditate on it a bit... looks pyrrhochroid-ish

cool beast.

Moved from ID Request.

… v belov, 8 January, 2020 - 5:13pm

yeah...

I was torn between something in the pyrochroid-pythid area or maybe an oedemerid akin to Calopus

… Blaine Mathison, 8 January, 2020 - 7:50pm

how about Leptoremus?

Darren suggested that this might be an eurigeniine; once i saw this bug the idea did cross my mind but those eury~s i remember were more sturdy etc
then i found a pic of male Leptoremus -- really flimsy and long-horned

… v belov, 8 January, 2020 - 8:44pm

genus looks good...

but specimen doesn't look like the 'single species' in North America that is currently depicted on BG...

… Blaine Mathison, 9 January, 2020 - 6:09am

Stictoleptura rubra

Definitely a longhorn.

… Mothgod, 8 January, 2020 - 2:01am

well...

the palpi, tarsi and mandibles do not look like Cerambycidae to me, but I don't know exactly know what it is...

… Bruce Tilden, 8 January, 2020 - 11:54am

thanks Bruce..

to me it has the look of a tenebrionoid, but I haven't had the chance to narrow it down.

… Blaine Mathison, 8 January, 2020 - 3:10pm

Thanks for the confirmation, Mothgod !

Stictoleptura rubra (male) does resemble, but is Palearctic and differs in having a wider pronotum, more robust antennae, and other features.

… Emile, 8 January, 2020 - 9:30am