They are another import from China there were NONE here in Virginia 10 years ago they started in PA & are moving South (on the east coast). They are somewhat regional we live in SW Virgina & left our camper in Myrtle Beach last fall because the year before we traped 2 cups full from the inside of the camper in a weeks time. But our RV Dealer is a mile SE of us has very few Stink Bugs but we have thousands. Our kids live 15 miles north & have almost no stink bugs. As stated before they are worse in the Fall when the come inside & try to hibernate.