Insects and Spiders - invasive

Asian Longhorned Beetle (Anoplophora glabripennis) on Jul 22, 2020

Submitter does not have a specimen

Description of specimen

We saw two beetles with very long antennae. They had mostly black bodies with irregular white splotches/markings. We didn't realize it was invasive when we saw it. We were curious and looked it up when we returned home. No photos were taken.

Commentary

Dear Paris, unfortunately without a specimen inn hadn't or a good image, it is hard to make a definite identification. Your description does sound like it was a longhorned beetle of the family Cerambycidae. We are looking out for the invasive Asian longhorned beetle, but we also have native longhorned beetles that look alike, such as the Oregon sawyer, Monochamus scutellatus. Thank you, Helmuth Rogg

Helmuth Rogg
July 22, 2020, 6:43 a.m.

Location

Marys River Park in Philomath, Oregon. We saw two beetles on a downed log on the side of an unofficial trail that dips into a forested gully very close to the established gravel trail and main parking lot near the park's play structure. The unofficial trail is dirt and about 25m long. It's a shortcut to the river from the main parking lot- the dirt trail entrance is behind a trashcan and horseshoe pit.

Expert Reviewer

Mr. Helmuth Rogg

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