Western Conifer Seed Bug

Natural Habitat

Coniferous forests, woodlands, and gardens; often seeks shelter indoors during winter.

Diet & Feeding

Feeds on the Developing seeds and flowers of various coniferous trees (like Douglas-fir and pines) using piercing-sucking mouthparts.

Behavior Patterns

Slow-moving and capable of flight; they emit a pungent, unpleasant odor if handled or threatened. They undergo simple metamorphosis from nymph to adult.

Risks & Benefits

Generally harmless to humans; they cannot bite or sting. Considered a nuisance pest when they enter homes in large numbers to overwinter. They can occasionally cause issues in commercial seed orchards.

Identified on: 4/11/2026