Currently viewing the category: "Metallic Borer Beetles"

Subject:  Glittery Beetle
Geographic location of the bug:  Little Cottonwood Canyon Utah
Date: 07/24/2019
Time: 10:54 PM EDT
Your letter to the bugman:  This beetle shimmered like glitter in the sunlight. We saw it at Tanners Flat campground in July.
How you want your letter signed:  Tyson Cramer

Golden Buprestid

Dear Tyson,
Your beautiful beetle is one of the Metallic Borer Beetles in the family Buprestidae.  It is a Golden Buprestid,
Buprestis aurulenta, and here is a BugGuide image for corroboration.  We have a letter in our archives regarding a Golden Buprestid that emerged from an eight year old cutting board.

Subject:  Large beetle in W. Montana
Geographic location of the bug:  Outside Missoula, MT
Date: 06/03/2019
Time: 12:55 AM EDT
Your letter to the bugman:  I’m very sorry to have to send you a “carnage” picture as my first submission but am very curious what kind of insect this is. It was stepped on by someone ahead of us on the trail in early June and is nearly two inches in length.
How you want your letter signed:  Dylan

Western Sculptured Pine Borer

Dear Dylan,
We much prefer images of living Western Sculptured Pine Borers than crushed ones.  We are always amazed that people who claim to enjoy outdoor activities can have so little regard for life.  Here is a BugGuide posting for reference.

Subject:  Beetle or Fly
Geographic location of the bug:  Mcminnville,Oregon
Date: 05/18/2019
Time: 03:33 PM EDT
Your letter to the bugman:  Our family came across this bug, it was resting on new grounds trail post,near our local woods. We have searched for identical bugs. Nothing has came close to identification. This particular bug did not mind movement or noise as it stayed silent amd still on the fresh wooden post! Maybe a wood beetle? Since the trail post were fresh built, or imported bug on wood the carpenders gathered to build post?! Very interesting.
How you want your letter signed:  To the rasmussen boys

Western Sculptured Pine Borer

Dear Rasmussen Boys,
This looks like a Western Sculptured Pine Borer,
Chalcophora angulicollis, to us.  According to BugGuide:  “Dark brown to black, sculptures on upper side, irridescent bronze luster, especially on underside. Fly noisily when alarmed. The only western species in the genus.

Subject:  Large Beetle
Geographic location of the bug:  Chennai India
Date: 09/25/2018
Time: 04:03 PM EDT
Your letter to the bugman:  Burpidae???  Friend sighted on a tree in Marina Beach area of Tamil Nadu India on Sept 1, 2018
How you want your letter signed:  Ranger Bert

Jewel Beetle

Dear Ranger Bert,
We believe you have misspelled the family in question.  This is a Jewel Beetle in the family Buprestidae, and we wish there was a dorsal view that clearly shows the elytra.  The first matching image we located was on Shutterstock where it is identified as “possibly
Sternocera nitens or S. Brahmina [sic].”  We found a different image on Alamy with an identical identification, but alas, no other verifiable images in our quick search.  Mounted specimens are pictured on Coleopsoc.

Jewel Beetle

Subject:  Large flying beetle Spain
Geographic location of the bug:  Granada province, Andalucia,  southern Spain
Date: 08/11/2018
Time: 04:34 PM EDT
Your letter to the bugman:  Struggling to identify this large, flying beetle in southern Spain. Predominanlty black but with distinctive mottle-like markings. This one is about an inch but I’ve seen ones maybe 2 inches at their largest. They seem to like our cherry tree saplings if that’s helpful. When you approach they crawl round the other side of the branch – making photo-taking difficult (!) and if that doesn’t work they drop off the tree into the leaf litter. They appear around July/August time.  Any ideas?
How you want your letter signed:  Tom, Spain

Capnodis tenebrionis

Dear Tom,
This is a Metallic Borer Beetle in the family Buprestidae, and we have identified it as
 Capnodis tenebrionis thanks to this image on FlickR.  According to Koppert Biological Systems:  “Capnodis tenebrionis is one of the most important pests in cultivated stone fruit (f.e. cherries, apricots and almonds) and in some cases seed fruit (apples and pears). … Both adult beetles and larvae damage plants. Adults feed on twigs and young branches mainly causing problems in tree nurseries and young plants. The greatest damage is caused by the larvae. Immediately after hatching they penetrate into the roots of the trees and feed on the cortex. They form long sinuous galleries full of sawdust. Young trees die as a result of this damage. A few larvae can also cause the death of an adult tree in 1 or 2 years.”  A suggestion for the organic control of Capnodis tenebrionis is also provided on that site.  Good luck saving your cherry trees.

Hi there Daniel,
Thank you very much for the speedy response and identification. Looks like my cherry trees are in for it.
Have you got a paypal account for donations? – Signing up for and going through the options is quite time-consuming.
I’d just like to make a quick donation in gratitude for the response.
Thanks, Tom

Subject:  Green Metallic Bug
Geographic location of the bug:  Washington state
Date: 08/06/2018
Time: 04:55 PM EDT
Your letter to the bugman:  My son found this outside in our back yard. Is about 3/4″. Please help identify. We’ve never seen anything like this.
How you want your letter signed:  Alicia Rinehart

Western Cedar Borer

Dear Alicia,
Your images perfectly exemplify why Beetles in the family Buprestidae are known as Jewel Beetles or Metallic Borer Beetles.  We have identified your individual as the Western Cedar Borer,
Trachykele blondeli, thanks to this image on BugGuide.

Jewel Beetle: Trachykele blondeli

Thank you so much Daniel!

You are most welcome Alicia.  This is only the second example we have posted of this gorgeous Jewel Beetle.

I have never seen one before. Any idea if they cause any damage to trees? I’m trying to find more information.

They are native, so they have natural predators.  We have not read anything about them being a serious threat to trees.

Western Cedar Borer