Hello, yes, I agree that looks like the locust borer (Megacyllene robiniae)  Although this is a non-native species, the host (black locust) is also non-native.  The locust borer is reported to only feed on black locust, so our native trees have been given a pass.  I'm not aware of any efforts to control or monitor this beetle because it does not threaten our native forests. It is a generally well known issue for black locust in Oregon however.

Thanks for the info. I won’t worry about it. I had read that the borers had not been found west of the Cascades so thought this was evidence of wider distribution.