
Community identification
Western Conifer Seed Bug
Leptoglossus occidentalis
- Order & Family
- Hemiptera (True Bugs), Coreidae (Leaf-footed Bugs)
- Size
- 16 to 20 millimeters (0.6 to 0.8 inches)
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.