
Community identification
Western conifer seed bug
Leptoglossus occidentalis
- Order & Family
- Hemiptera; Coreidae (leaf-footed bugs)
- Size
- About 15–20 mm long.
Natural Habitat
Native to western North American conifer forests; often enters buildings in autumn to overwinter.
Diet & Feeding
Sucks fluids from developing seeds in pine, fir, and other conifer cones.
Behavior Patterns
A brown, elongated bug with a pale zigzag across its folded wings and flattened, leaf-like hind legs. Adults seek sheltered places to overwinter; they may release a strong odor when disturbed.
Risks & Benefits
Harmless to people and does not damage homes, though it can be a nuisance indoors. Feeding can reduce conifer seed production.