Halyomorpha halys
| Brown marmorated stink bug | |
|---|---|
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| Adult female | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hemiptera |
| Family: | Pentatomidae |
| Genus: | Halyomorpha |
| Species: | H. halys |
| Binomial name | |
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Halyomorpha halys Stål, 1855 |
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Halyomorpha halys, also known as the brown marmorated stink bug (BMSB), or simply the stink bug, is an insect in the family Pentatomidae that is native to China, Japan, Korea, and Taiwan. It was accidentally introduced into the United States, with the first specimen being collected in September 1998. The brown stink bug is considered to be an agricultural pest, and by 2010–11 had become a season-long pest in U.S. orchards. Currently it is widespread in Europe, and recently has been found in South America
The adults are approximately 1.7 centimetres (0.67 in) long and about as wide, forming the shield shape characteristic of other stink bugs. They are various shades of brown on both the top and undersides, with gray, off-white, black, copper, and bluish markings. Markings unique to this species include alternating light bands on the antennae and alternating dark bands on the thin outer edge of the abdomen. The legs are brown with faint white mottling or banding. The stink glands are located on the underside of the thorax, between the first and second pair of legs, and on the dorsal surface of the abdomen.
The brown marmorated stink bug is an agricultural pest that can cause widespread damage to fruit and vegetable crops. In Japan it is a pest to soybean and fruit crops. In the U.S., the brown marmorated stink bug feeds, beginning in late May or early June, on a wide range of fruits, vegetables, and other host plants including peaches, apples, green beans, soybeans, cherries, raspberries, and pears. It is a sucking insect, a "true bug", that uses its proboscis to pierce the host plant in order to feed. This feeding results, in part, in the formation of dimpled or necrotic areas on the outer surface of fruits, leaf stippling, seed loss, and possible transmission of plant pathogens.
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