Brown Marmorated Stink Bug
Scientific Name: Halyomorpha halys
Order & Family: Hemiptera: Pentatomidae
Size: Approximately 12 to 17 mm (about 0.5 to 0.7 inches) long.

Natural Habitat
Agricultural fields, orchards, gardens, and urban settings; often seeks shelter in buildings and homes during winter.
Diet & Feeding
Herbivorous; feeds on a wide variety of plants including fruit trees, vegetables, and ornamental plants by piercing the plant tissue to suck out juices.
Behavior Patterns
Known for their 'stinking' defense mechanism which involves releasing a pungent odor from glands when threatened or crushed; they undergo simple metamorphosis from egg to nymph to adult.
Risks & Benefits
Considered a major agricultural pest that can damage crops; for humans, they are a nuisance pest in homes but do not bite or sting. They provide little ecological benefit in non-native regions.
Identified on: 3/9/2026