Western Conifer Seed Bug

Found in coniferous forests and surrounding areas; commonly enters homes and buildings in autumn to seek shelter for the winter.

Feeds on the Developing seeds and flowers of various coniferous trees (such as pine, Douglas-fir, and hemlock) using piercing-sucking mouthparts.

Nymphs and adults are active during the warmer months on host trees. In late summer and autumn, adults aggregate and seek overwintering sites. When disturbed, they can produce a pungent odor as a defense mechanism.

They do not bite, sting, or cause structural damage to homes, though they are considered a nuisance pest indoors. They can potentially reduce seed yields in commercial conifer seed orchards.