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.

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