The brown marmorated stink bug (Halyomorpha halys) is a polyphagous pest native to Asia. It measures between 12 and 17 mm in length and 7 to 10 mm in width, and it is recognizable by the light-dark pattern on its antennae.
The brown marmorated stink bug is also known for occasionally invading homes in large numbers during autumn as it seeks shelter to overwinter.
The brown marmorated stink bug is a hemipteran insect from the Pentatomidae family. The flattened part (connexivum) that extends laterally from the abdomen features alternating light rectangular spots and black spots. On its underside, the abdomen lacks a ventral tip (unlike the mottled shield bug, with which it is often confused).
In France, the brown marmorated stink bug reproduces once a year, with reproduction occurring in summer. The female lays 27–28 eggs, which hatch 3 to 6 days after oviposition (egg deposition on a surface). There are five larval stages before reaching adulthood. The brown marmorated stink bug is a polyphagous piercing insect that feeds on fruits (apples, cherries, peaches, raspberries), vegetables (tomatoes, eggplants, peppers), and ornamental plants (butterfly bush, hibiscus).