Insects and Spiders - native

Western Cedar Borer (Trachykele blondeli) on Jul 24, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter has sample

Description of specimen

3/4” shiny green beetle looks similar to EAB. Seems

Commentary

Thank you for your report! Correct: EAB is smaller and more slender. This is Western cedar borer (Trachykele blondelii). They are not tree killers.

Tom Valente
July 25, 2025, 4:12 a.m.

Resources

Western Cedar Borer information on iNaturalist and a guide to wood boring beetles in Oregon from the Oregon Department of Forestry.

Location

On our concrete driveway at our house.

Expert Reviewer

Tom Valente
Oregon Department of Agriculture

© 2025 Portland State University | Contact us for questions regarding site content