Insects and Spiders - native

Western Cedar Borer (Trachykele blondeli) on May 22, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen

Description of specimen

Beetle of about 1/2” and emerald green

Commentary

Thank you for your report! This is not EAB. It's a native member of the Metallic Wood-boring beetle family, the Western cedar borer, Trachykele blondeli. These beetles are larger and less slender than EAB. They are not tree killers.

There are a number of iridescent green look-alike beetles in Oregon that are not pests. I am attaching a link to the ODF EAB webpage with some photos of other Oregon insects that could be mistaken for EAB

https://oregon-eab-geo.hub.arcgis.com/pages/identify

Thanks for being on the lookout!

Tom Valente
May 23, 2025, 9:59 a.m.