Insects and Spiders - native

Western Cedar Borer (Trachykele blondeli) on Jul 23, 2025

Submitter does not have a specimen

Description of specimen

Bright green insect.. beetle about 2cm in length

Commentary

Thank you for your report! This is not EAB. This is Western cedar borer, Trachykele blondelii. They are not tree killers. Their grubs feed in dead and dying cedars.

Tom Valente
July 25, 2025, 4:20 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 a window in my front yard located at 74th and Madison st. Area is under four mature western cedars… other OR nstives

Expert Reviewer

Tom Valente
Oregon Department of Agriculture

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