False long-horned beetles (Stenotrachelidae) are a small family, with just 10 species in North America and only two of those living in the Pacific Northwest. They are so-called for their resemblance to long-horned beetles (Cerambycidae). A close look at the tarsi (the last part of the insect leg) on the hind leg would reveal four segments, unlike long-horns, who have five tarsal segments on all of their legs. The adults are not frequently found, but are usually on flowers or drawn into lights at night. Larvae develop in rotting logs. This species ranges from British Columbia to central California, east to Alberta, Montana, Utah, and Colorado in forested areas.
Photo by: Peter Lesica around 6/28/21 near Lacy Creek in the West Pioneer Mountains, MT