Western conifer seed bug

Conifer forests, urban landscapes, buildings, and other areas near pine, fir, spruce, or cedar trees; native to western North America and now widespread elsewhere.

Adults and nymphs pierce developing conifer seeds and cones with sucking mouthparts, especially pine seeds; they may occasionally feed on other plant material.

Adults are strong fliers and commonly enter buildings in autumn to overwinter, often aggregating in sheltered walls, attics, or window areas. They resume activity in spring and produce one generation annually in many regions.

Harmless to people and not known to transmit disease, though they can emit a strong odor when handled or crushed. They may reduce conifer seed production but are also prey for birds, spiders, and predatory insects.