Brown Marmorated Stink Bug

Scientific Name: Halyomorpha halys

Order & Family: Order: Hemiptera, Family: Pentatomidae

Size: 1.2 to 1.7 cm (approximately 0.5 to 0.7 inches) long.

Brown Marmorated Stink Bug

Natural Habitat

Originally from East Asia; now an invasive species globally, typically found in agricultural fields, residential gardens, and indoors during colder months seeking warmth.

Diet & Feeding

Polyphagous herbivore; feeds on over 100 species of plants, particularly fruits (apples, peaches, pears), vegetables, ornaments, and crops like soybeans.

Behavior Patterns

Known for releasing an unpleasant coriander-like odor when threatened or crushed. They aggregate in large numbers on the sides of buildings in autumn to find overwintering shelter inside homes.

Risks & Benefits

Risks: Major agricultural pest causing significant crop damage; a household nuisance in winter. Not harmful to humans (does not bite or sting) but can trigger allergic reactions in some sensitive individuals due to defensive chemicals. Benefits: None in invasive ranges.

Identified on: 3/3/2026