Bug Identifier
Brown Prionid
Community identification

Brown Prionid

Orthosoma brunneum

Order & Family
Order: Coleoptera, Family: Cerambycidae
Size
25 to 50 mm (1 to 2 inches) in length
See this bug in the Encyclopedia

Natural Habitat

Forests, woodlands, and areas with dead or decaying hardwood trees.

Diet & Feeding

Larvae bore into and feed on decaying wood and roots of various deciduous trees. Adults generally do not feed or may consume sap and nectar.

Behavior Patterns

Nocturnal adults are strongly attracted to lights at night. Larvae spend multiple years developing underground or inside rotting logs before pupating.

Risks & Benefits

Generally harmless to humans, though they can deliver a painful pinch with their mandibles if handled improperly. Their larvae play a beneficial role in nutrient cycling by breaking down dead wood in forest ecosystems.