Rugose Stag Beetle ~ Sinodendron rugosum
This is a male stag beetle. There are fewer than 15 species in the Pacific Northwest.
Adults are active in spring and summer.
Adults feed on leaves and honeydew, or may not eat at all. The jaws are usually large and capable of pinching the skin if handled, which is why they are sometimes called "pinching bugs." Their habitat consists of woods and sandy places.
Larva are small, white, and C-shaped; they live and feed on decaying wood.