In North America, scientists currently recognize approximately 260 different species of “stink bugs”.  Of this wide range of species, only a little more than a dozen are normally reported inside homes during the year.  Stink bugs are generally an inch in length and smaller, going down to a size of around 1/6 of an inch.  These insects get their common name from the many members of the family that have scent glands which penetrate the air with a strong and noxious odor.  This scent mechanism is used by stink bugs much in the same way a skunk uses his scent glands, as a defense mechanism against predators.  Stink bugs generally enter homes and dwelling places during the winter months, looking for a warmer place to hibernate for the winter.  Stink bugs come in a range of colors including greens and browns.  Their backs are shield shaped, and they have a triangular thorax.  Adult stink bugs have four wings and two antennas.
The life cycle of a stink bug begins after the winter hibernation is over.  Female stink bugs will emerge with nearly 150 eggs that they will carry until they find a place to lay them.  The eggs are usually attached to the underside of a leaf, where the female believes they will be safe.  Depending on weather and other conditions, the eggs will hatch anywhere from a few days to a few weeks after they are laid. 
Stay Tuned over the next few days for the rest of this four part series, including prevention and treatment for stink bugs.