Western Cedar Borer

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
Photo of author


BugMan aka Daniel Marlos has been identifying bugs since 1999. WhatsThatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

1 thought on “Western Cedar Borer”

  1. I believe I came across a mass of these beetles in Oregon along the river. I have photos if they would be helpful to your site, feel free contact me.


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