Brown Marmorated Stink Bug

Scientific Name: Halyomorpha halys

Order & Family: Order: Hemiptera, Family: Pentatomidae

Size: 1.7 cm (0.67 in) long and about as wide.

Agricultural fields, orchards, gardens, and woodlands; frequently enters human structures in winter.

Herbivorous; feeds on a wide variety of plants including fruits, vegetables, and ornamental trees.

Aggregates in large numbers on buildings in autumn to seek warmth for overwintering; releases a pungent odor when threatened or crushed.

Major agricultural pest that damages crops; nuisance to humans indoors but does not bite or transmit disease.

Identified on: 2/3/2026