Knowledgebase

Bug identification #926821

Asked March 26, 2026, 1:41 PM EDT

Can you please identify this bug ? We keep finding them in the home and can't figure out where they are coming from. Thank you

Douglas County Oregon

Expert Response

David

I do believe I have a good idea of what the beetle is, But to help me get a correct ID I have some questions for you.

Do you have firewood in the house?

What part of the house are these beetles found?

When did you first find them?

How big is the beetle?

Are you still finding them?

Can you take some more pictures?

Pictures from different angles can be a big help in the ID of this beetle. Try to get a better focus as well.

Let me know if you have any additional questions. Thank you for contacting us at Ask Extension. Rich

An Ask Extension Expert Replied March 27, 2026, 5:45 PM EDT
Rich

Yes we do have a small amount of firewood in the house the bugs are showing up on the other side of the house about 60 feet away .We first noticed them about 6 weeks ago. We have had wood in the house since October always rotating it down when its all gone .The size seems to very from 1/4 to 3/4 of an inch. Usually I notice them walking on me while sitting and I swat them off since they startle me. Its hard to get more pictures since I end up swatting them . We have cleaned and search the area I see them most and don't see  a spot they can come in at . They do have wings and fly it seems .All the ones I have been able to get a look at all seem to have an X on the back .  

The only thing I can find on researching them is a Spruce Zebra Beetle. Sorry no more pictures yet twice yesterday swatted and smashed them . 

David


On Friday, March 27, 2026 at 02:45:12 PM PDT, Ask Extension wrote:


The Question Asker Replied March 30, 2026, 1:10 PM EDT

David

Thanks for your answers, they were most helpful.

What you have is a nautical borer, Neoclytue spp. a longhorn beetle that commonly emerges from firewood' that is brought into the house during the fall, winter, and spring periods. You can check out the firewood you have in your house, look for small round holes in the branches, and logs. The wood having warmed up to room temperature makes the beetles inside the logs think it is spring, they come out, and we encounter them.

It attacks unseasoned wood with bark remaining, and frequently causes serious losses of ash, hickory, and oak logs left exposed during the flights of these insects. Best solution is to keep your firewood outside the house and bring it in as you need it.

Let me know if you have any additional questions. Thank you for contacting us at Ask Extension. Rich

An Ask Extension Expert Replied March 31, 2026, 3:49 PM EDT

Loading ...