Hi Bud,

This looks like a California prionus beetle, also called the prionus root borer.  It is a large, boring insect whose larva feed on the roots of a variety of trees and shrubs.  The adults emerge from midsummer into fall, move about nocturnally and drawn to light, may fly into windows at night, crashing violently. Among the largest of the long-horned beetles, Prionus adults may be over 2 inches long with grubs growing over 4 inches long. They do not bite or harm humans, but the larvae are considered pests in orchards. One of the largest beetles in North America.