Bug Identifier
Brown Prionid Beetle
Community identification

Brown Prionid Beetle

Orthosoma brunneum

Order & Family
Order: Coleoptera, Family: Cerambycidae
Size
25 to 50 millimeters (1.0 to 2.0 inches) in length
See this bug in the Encyclopedia

Natural Habitat

Forests and wooded areas, often found near decaying wood, logs, or stumps. Adults are frequently attracted to porch lights at night.

Diet & Feeding

Larvae bore into and feed on decaying wood of various broadleaf and coniferous trees. Adults generally do not feed or may occasionally sip plant sap or nectar.

Behavior Patterns

Nocturnal insects that spend the daylight hours hidden under bark, in rotten wood, or in leaf litter. They are strong fliers and are readily drawn to artificial lights during summer evenings.

Risks & Benefits

They do not bite or sting humans, though handling them carelessly can result in a pinch from their powerful mandibles. Larvae play a crucial role in forest ecosystems by decomposing dead wood and recycling nutrients back into the soil.