Ponderous Borer (Trichocnemis spiculatus) on Aug 24, 2019
Submitter has sample
Description of specimen
Asian long horned beetle
Commentary
Dear Teresa, hard to see but this is either Prionus californicus or the ponderous borer, Trichocnemis spiculatus. The ponderous borer is the largest cerambycid in Oregon. The larvae bore in dead wood of various conifers. They do not infest structures. Adults don’t feed and live for only a short time. Thank you, Helmuth Rogg, Oregon Department of Agriculture
Helmuth Rogg
Aug. 26, 2019, 12:30 a.m.