Brown Marmorated Stink Bug
Compiled by Gail Ruhl, Purdue Plant and Pest Diagnostic Lab
The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera:
Pentatomidae), is an insect first identified on our continent in fall 2001
in Allentown, PA; however, undetermined sightings likely date as far back as
1996. As of September 2010, Steve Jacobs, Penn State Entomologist, notes that Halyomorpha halys has been reported in numerous counties throughout Pennsylvania as well as confirmed in many other states including California, Connecticut, Delaware, Florida, Kentucky, Maine, Maryland, Massachusetts, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Washington, D.C. and West Virginia. As of October 20, we can add Indiana (Elkhart county) to the list of states with BMSB confirmations.
This true bug in the insect family Pentatomidae is known as an agricultural
pest in its native range of China, Japan, Korea and Taiwan. Recently, the
BMSB has become a serious pest of fruit, vegetables and farm crops in the
Mid-Atlantic region and has the potential to become a pest of these
commodities in other areas in the United States.
BMSB becomes a nuisance pest both indoors and out (similar to Asian lady
beetles and boxelder bugs) when it is attracted to the outside of houses on
warm fall days in search of protected, overwintering sites. BMSB
occasionally reappears during warmer sunny periods throughout the winter,
and again as it emerges in the spring.
Adult BMSB have the typical "shield" shape of other stink bugs, almost as
wide (3/8 inch) as they are long (5/8 inch). Adult BMSB can be distinguished
from other species of stink bugs by the alternating dark and light bands on
the last two segments of the antennae. The exposed side edges of the abdomen
also have alternating light and dark banding.
More links and information on Brown Marmorated Stink Bug
Brown Marmorated Stink Bug Confirmations in Indiana Map (pdf file)
Click image to enlarge