Brown Marmorated Stink Bug

Scientific Name: Halyomorpha halys

Order & Family: Order: Hemiptera, Family: Pentatomidae

Size: Approximately 12 to 17 mm (0.5 to 0.7 inches) in length.

Brown Marmorated Stink Bug

Natural Habitat

Agricultural fields, orchards, gardens, and urban settings; they often seek shelter inside buildings during winter months.

Diet & Feeding

Polyphagous herbivore; feeds on a wide variety of plants including fruits (apples, peaches, pears), vegetables (tomatoes, peppers, corn), and ornamental trees.

Behavior Patterns

They exhibit a 'stink' response when threatened or crushed, releasing a pungent chemical. They undergo incomplete metamorphosis (egg, nymph, adult) and are known for aggregation behavior in the fall.

Risks & Benefits

Risks: Major agricultural pest that causes significant damage to crops and a nuisance to homeowners when they invade buildings. Benefits: Minimal ecosystem benefits, though they serve as food for some birds and predatory insects.

Identified on: 12/31/2025