Brown Marmorated Stink Bug

Scientific Name: Halyomorpha halys

Order & Family: Order Hemiptera, Family Pentatomidae

Size: Approximately 12 to 17 mm (about 0.5 to 0.7 inches) long.

Brown Marmorated Stink Bug

Natural Habitat

Found in gardens, orchards, and agricultural fields; frequently enters homes and buildings during autumn to find overwintering sites.

Diet & Feeding

Polyphagous herbivore that feeds on a wide variety of plants including fruits (apples, peaches), vegetables, and ornamental plants using piercing-sucking mouthparts.

Behavior Patterns

Notable for releasing a pungent odor from scent glands when disturbed or crushed. In late fall, they exhibit aggregation behavior, gathering in large numbers on the southern walls of buildings to seek warmth.

Risks & Benefits

An invasive agricultural pest that causes significant damage to crops. They are a nuisance to homeowners but do not bite humans, sting, or carry diseases. They provide no significant ecosystem benefits in their invasive range.

Identified on: 3/10/2026