Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Curculionoidea » Snout and Bark Beetles (Curculionidae) » Bark and Ambrosia Beetles (Scolytinae) » Xyleborini » Xyleborus » Xyleborus bispinatus
Photo#390642
Xyleborus bispinatus
Copyright © 2010 Cotinis

Xyleborus bispinatus
Parkwood, Durham County, North Carolina, USA
September 16, 2008
Size: 3 mm
This tiny (3 mm body length) bark beetle came to a lighted sheet. I have several views, as it was hard to get much of it in focus at once, and I don't know what might be important for ID.

(Thanks, Vasili and John. You beetle folks are amazing!)
And, see comments on further refinement to ID (28 August 2020).
Image updated (slightly larger version) 8/28/20.

Images of this individual: tag all
Xyleborus bispinatus Xyleborus bispinatus Xyleborus bispinatus Xyleborus bispinatus Xyleborus bispinatus Xyleborus bispinatus
tag · login or register to post comments
Contributed by Cotinis on 30 April, 2010 - 9:50pm
Last updated 28 August, 2020 - 8:51am

Moved
Moved from Xyleborus ferrugineus.
… Marc DiGirolomo, 28 August, 2020 - 7:49am login or register to post comments

 
thanks for update...
I found a key online which, I presume, is describing the relevant characters to differentiate bispinatus from >ferrugineus"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6019436/

I added these images, which may show some of those characters a bit better than the impages previously posted:

Also, I updated the existing images to larger versions with a bit more careful processing that I am able to do these days.
… Cotinis, 28 August, 2020 - 10:19am login or register to post comments

 
Excellent
Yeah, that's the best key to use for Xyleborini.

bispinatus used to be synonymized under ferrugineus, so it's understandable that sometimes they are misidentified, especially if someone is using outdated literature.
… Marc DiGirolomo, 28 August, 2020 - 10:40am login or register to post comments

thanx again, John
Moved from Xyleborus.
… v belov, 7 May, 2010 - 3:51pm login or register to post comments

X. ferrugineus
At that location, size, and with that declivity: X. ferrugineus. X. celsus has an additional pair of larger tubercles atop the declivity (which is also steeper in celsus) which may be reduced, but here seem typical of ferrugineus.
… John Leavengood, 7 May, 2010 - 3:28pm login or register to post comments

Moved
Moved from Bark and Ambrosia Beetles. Thanks folks, I'm moving this to genus Xyleborus.
… Cotinis, 1 May, 2010 - 6:02am login or register to post comments

Moved
Moved from Horned Powder-post Beetles.
… Cotinis, 30 April, 2010 - 10:04pm login or register to post comments

Bark beetle
This is a bark beetle (Curculionidae:Scolytinae). Can't place it off the top of my head.
… Brad Barnd, 30 April, 2010 - 10:03pm login or register to post comments

 
looks an awful lot like Xyleborus celsus on your pix, Brad
*
… v belov, 30 April, 2010 - 10:13pm login or register to post comments

 
Xyleborus
Now that you mention it, this does like a Xyleborus sp. X. celsus is described as 3.6 to 4.5 mm, which would make this a little small. There are numerous other species of this genus and I am not familiar with them, so I can't make a species call. Haven't looked at any scolytids in awhile, which doesn't help either. :)
… Brad Barnd, 1 May, 2010 - 1:13am login or register to post comments

 
thanks
Thanks, Brad, I realized that just after I posted it.
… Cotinis, 30 April, 2010 - 10:05pm login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact