The American cockroach, also called a “waterbug,” is the largest of the house infesting cockroaches. Despite its name, the American cockroach is not native to North America, but was probably introduced via ships from Africa in the 1600s.
The German cockroach is the most common species of cockroach, found all over the world. German cockroaches prefer to live in cracks and crevices near food and moisture sources, hence their affinity for residential and commercial kitchen environments.
Oriental cockroaches live in sewers and in wet, decaying organic matter. They are sometimes called “waterbugs” because they come out of drains, and “black beetle cockroaches” because of their smooth, dark bodies.
Smoky-brown cockroaches require high humidity for survival. They are found outside in wooded areas that provide shade and moisture. They can also be seen in protected areas around homes (tree holes and mulch) and in buildings and attics.