Brown Marmorated Stink Bug

Scientific Name: Halyomorpha halys

Order & Family: Hemiptera, Pentatomidae

Size: 1.2 to 1.7 cm (0.5 to 0.7 inches) in length

Brown Marmorated Stink Bug

Natural Habitat

Originally from East Asia (China, Japan, Korea, Taiwan), it has become an invasive species in North America and Europe. It is found in agricultural areas, orchards, gardens, and urban settings, often seeking shelter in homes and structures during colder months.

Diet & Feeding

Polyphagous, meaning it feeds on a wide variety of plants. It uses its piercing-sucking mouthparts to feed on fruits, vegetables, field crops, and ornamental plants. Favored hosts include apples, peaches, corn, soybeans, tomatoes, and various shade trees.

Behavior Patterns

Known for emitting a strong, foul-smelling odor when disturbed or crushed, which is a defense mechanism. They are attracted to light and a common nuisance in homes, especially in the fall when they seek overwintering sites. They do not bite humans but can be a considerable household pest.

Risks & Benefits

Risks: A significant agricultural pest, causing considerable economic damage to crops through feeding activity, which includes fruit deformation, necrosis, and premature drop. It is also a household nuisance pest. Benefits: No known direct benefits, but they are a food source for some predatory insects and birds.

Identified on: 10/17/2025