The Brown Prionid Beetle (Orthosoma brunneum) is a large nocturnal beetle belonging to the longhorn beetle family. Its larvae develop inside decaying wood and tree roots.
Quick Facts
- Family: Cerambycidae
- Habitat: Forests and wooded areas
- Larval Diet: Decaying wood
- Status: Mostly harmless decomposer
Identification
Adults are large reddish-brown beetles with long antennae. Their bodies may reach 1 to 2 inches in length.
The species belongs to the group of longhorn beetles.
Distribution
Brown prionid beetles occur throughout much of North America and are most often seen during summer nights when they are attracted to lights.
Pest Status
These beetles rarely cause serious damage because their larvae feed primarily on dead or decaying wood.