Western Sculptured Pine Borer

Natural Habitat

Found in coniferous forests across Western North America, particularly associated with ponderosa pine, Douglas-fir, and grand fir.

Diet & Feeding

Adults may consume pine needles and twigs, while larvae (borers) feed on the wood of dead or decaying coniferous trees.

Behavior Patterns

Diurnal insects often seen sunning themselves on the bark of host trees. They are known for their metallic luster and are strong fliers. The larvae create characteristic winding galleries as they bore through timber.

Risks & Benefits

Plays a beneficial role in the ecosystem by breaking down dead wood. While they can be a minor pest to structural lumber stored in yards, they do not typically attack healthy standing trees and pose no direct risk to humans.

Identified on: 6/25/2026