Bean Weevil (Seed Beetle)

Scientific Name: Bruchinae subfamily (e.g., Acanthoscelides obtectus)

Order & Family: Order: Coleoptera; Family: Chrysomelidae

Size: 1.0 mm to 5.0 mm

Bean Weevil (Seed Beetle)

Natural Habitat

Found in agricultural fields, gardens, and indoor food storage areas where dried legumes are kept.

Diet & Feeding

Larvae develop and feed inside the seeds of legumes (beans, peas, lentils); adults may feed on nectar or pollen.

Behavior Patterns

Females lay eggs on the pods of host plants or directly on stored dried seeds. Larvae burrow into the seed to pupate, eventually emerging as adults through round holes.

Risks & Benefits

A significant agricultural and household pest that can destroy stored food supplies; harmless to humans and animals directly as they do not bite or sting.

Identified on: 5/13/2026