Ponderosa Pine Bark Borer - Acanthocinus princeps

Just FYI, in the posts here t

Just FYI, in the posts here the name of this species is spelled correctly, however, in the BG directory, it is spelled "principes" rather than "princeps"

… Ian Swift, 14 January, 2010 - 5:20pm

fixed -- thanx for your vigilance, Ian

… v belov, 14 January, 2010 - 6:06pm

great call -- i'm sure Erik's right

thanks, Karen, for sharing this nice series; BG definitely could use more of your work... and luck, too!

Moved from Flat-Faced Longhorns.

… v belov, 20 July, 2009 - 4:47pm

I agree

Looks like you're new to BugGuide...Welcome Karen :-) Your two posts to date are nice photos and quite interesting insects; hope you continue contributing.

BTW, in case it's of interest, Evans & Hogue(1) mention that there are two species of Acanthocinus in the Sierra Nevada with the same activity periods and distributions. Namely:
--- A. obliquus...body length 8-17mm without ovipossitor, and with elytra pitted at their bases; and
--- A. princeps...body length 13-24mm without ovipossitor, and with elytra appearing granular at their bases.

Your specimen looks fairly long, and I think I can see what might be called a "granular" pattern at the base of the wing covers. So Eric's ID seems good to me. Not that I'm qualified to bicker over such things with Eric or =v= :-). But if you see more Acanthocinus in the future, you might want to be aware of the presence of both species.

… Aaron Schusteff, 20 July, 2009 - 6:19pm

Thanks!

Thanks to both of you. With this kind of encouragement, I think I'll go ahead and post some older photos. :)

I looked again at my photos of the Acanthocinus. It *may* have a "granular pattern" on the elytra, so I thought it worthwhile to post the image that best shows that, and I'll add it to the other pictures.

Karen

… Karen Rathbun, 20 July, 2009 - 6:42pm

nice dude -- will ask around

Moved from ID Request.

… v belov, 19 July, 2009 - 12:45pm

Found.

Found in guide already: Acanthocinus principes. Great images of a very nice specimen!

… Eric R. Eaton, 19 July, 2009 - 9:47pm

Acanthocinus principes - Ponderosa Pine Bark Borer

Eric, thanks for your help! I'm delighted that my pictures are useful!

I'm adding "Ponderosa Pine Bark Borer" to my subject line as it's the only common name I found mentioned for this beetle. If you think a common name referenced ("tagged"?) to the images would be a good idea, how would I go about doing that?

Karen

… Karen Rathbun, 19 July, 2009 - 10:20pm

Ponderosa Pine Bark Borer

Hello, Karen! I have added this common name to the Info page for the species here, so that it will be referenced as such on this site. If you also wanted to change the title on your posts so that it read something other than "A longhorn beetle?", you would need to click on the "edit" link (located just below your image thumbnails) and this will take you to the original submission form where you can make any changes you which to the title, date, size, description, etc. Unfortunately, it is necessary to click on the "edit" link for each individual photo you have submitted as the changes you make to one page will not take automatically be applied to the others. I hope that answers your question!

… Harsi S. Parker, 20 July, 2009 - 8:13pm