Western Conifer Seed Bug

Natural Habitat

Found in coniferous forests and around residential areas with pine, Douglas-fir, and spruce trees. Often enters homes in fall to overwinter.

Diet & Feeding

Herbivorous; it uses its piercing-sucking mouthparts to feed on the developing seeds and cones of various coniferous trees.

Behavior Patterns

Active from spring through fall; they are known for their leaf-like expansions on the hind legs. In the autumn, they seek shelter in rock crevices or human structures to hibernate.

Risks & Benefits

They do not bite, sting, or carry diseases. However, they are considered a nuisance pest when they enter homes and can emit a pungent odor as a defense mechanism if disturbed.

Identified on: 3/11/2026