Brown Longhorn Beetle / Long-horned Beetle
Scientific Name: Cerambycidae family
Order & Family: Order: Coleoptera; Family: Cerambycidae
Size: Commonly 10mm to 30mm (approx. 0.4 to 1.2 inches) depending on the specific species.
Natural Habitat
Found in wooded areas, forests, and near decaying wood; they occasionally enter homes through firewood or open doors/windows.
Diet & Feeding
Larvae (wood-borers) feed on the wood of trees or shrubs; adults may feed on pollen, nectar, sap, or foliage.
Behavior Patterns
Often nocturnal and attracted to lights at night. They are known for their extremely long antennae and for the characteristic squeaking sound some species make when handled.
Risks & Benefits
They pose no direct risk to humans as they do not sting or carry diseases. However, they are significant decomposers in forest ecosystems by breaking down dead wood. Some species can be pests to timber or ornamental trees.
Identified on: 6/25/2026