Subject: Borers in Oregon
Location: Josephine Co., Oregon
October 19, 2014 5:39 pm
We were splitting Madrone firewood today (10/19/14), and it was full of borers of some kind. There were two varieties. The black & green variety was the most common (probably 90%), but there were also some of the red and black. We’re interested in learning more about them, particularly whether they’re a threat to our woods.
We believe your Longhorned Borer might be Neoclytus conjunctus, which is a native species found along the western portion of North America according to BugGuide. Alas, BugGuide does not offer any specific information on the species. We suspect it is not a cause for concern as it is a native species. Your red and black beetle belongs to a different family and we will research its identity later.