On Aug 13, 2006, Scorpioangel from Gold Hill, OR (Zone 7a) wrote:
Description: This is the largest beetle in western North America. They can reach 65 mm in length. They are slender and flattened. Elytra are reddish brown with a few distinct ridges. The pronotum and head are much darker. The margins of the thorax have a few large spines and usually several smaller ones. Antennae are over half of the body length and tend to lay back along the length of the body. The eyes partially surround the base of the antennae. The mandibles are fairly large.
Habits: Adults lay eggs in crevices in the bark of the snags, logs, and stumps of Douglas fir, pines, firs, and redwoods. Larvae excavate large tunnels within the sapwood and heartwood. Although detrimental to the logging industry, they are a naturally occurring element of western forest ecology. La... read more