Insects and Spiders - native

Banded Alder Borer (Rosalia funebris) on Jul 8, 2020

Originally reported as Asian Longhorned Beetle (Anoplophora glabripennis)

Submitter does not have a specimen

Description of specimen

It was a Citrus Longhorn Beetle. Quite large, body at least an inch in length excluding the antennae. Easily identifiable based on size and markings. Had white and black "stripes" and had some blue coloring. I apologize for not having images but it was extremely obvious as to what species it was.

Commentary

Dear Kendra, thank you for contacting us re a potential invader. Unfortunately, as the saying goes, a picture is worth a thousand words, it would be much easier to make an identification with an image. However, the description you gave, in particular the "stripes" does indicate, as you allude to in your comment, it may have been a banded alder borer. The invasive citrus and the asian longhorned beetles do not have stripes but white dots on black elytra.
Thank you, Helmuth Rogg

Helmuth Rogg
July 9, 2020, 12:18 a.m.

Resources

Information from Banded Alder Borer from Oregon State and iNaturalist.

Location

There is a sandy beach walkway from the parking lot to the beach. It was found appx. 20 feet before the walkway ends and opens up to the beach. It was crawling the sand by beach grass.

Expert Reviewer

Mr. Helmuth Rogg

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