Leaf-footed bug (likely a western conifer seed bug)

Conifers and nearby homes; often enters buildings in autumn to overwinter.

Pierces and feeds on developing seeds and cones, especially those of pines and other conifers.

Adults are elongated, with flattened, leaf-like expansions on the hind legs; they may gather on sunny walls and shelter indoors during winter.

Harmless to people and buildings; can damage conifer seeds, but is not a major household pest.