Leaf-footed Bug (likely Western Conifer Seed Bug or Anasa tristis)

Natural Habitat

Found on various plants, especially conifers (for Leptoglossus occidentalis) or cucurbits (for Anasa tristis). Often seen near human dwellings, looking for overwintering sites.

Diet & Feeding

Primarily plant sap. Leptoglossus occidentalis feeds on the developing seeds and cones of conifers. Anasa tristis feeds on the sap of cucurbit plants.

Behavior Patterns

They are typically slow-moving. When disturbed, they may fly away or emit a foul-smelling liquid as a defense mechanism. They often seek shelter indoors during colder months.

Risks & Benefits

Potential risks include being a minor pest to conifer trees (L. occidentalis) or a significant pest to cucurbit crops like squash and pumpkins (A. tristis). They do not bite or sting humans and are generally harmless, though their defensive odor can be unpleasant.

Identified on: 10/18/2025