The brown marmorated stink bug is an insect in the family Pentatomidae that is native to China, Japan, the Korean peninsula, and Taiwan. It was accidentally introduced into the United States, with the first specimen being collected in September 1998.
Usually a fall pest, stink bugs show up around doors and windows trying to find a warm place to live during the winter months.
They can access your home through very narrow spaces and cracks, like a tear in the door screen. They are attracted to light and will end up in a sunny part of your home or on lights and lamp shades.