The German cockroach is 12 to 17 mm (1/2 to 5/8 inch) long, tan to light brown, and has two dark brown stripes on the body region (pronotal shield) just behind the head. Females will produce four to eight egg capsules during their lifetime, with each capsule containing approximately 40 eggs. The female retains the egg capsule until the eggs are ready to hatch, usually in 28 to 30 days.
German cockroaches are widespread and can be found in homes, restaurants, hospitals, nursing homes or apartments. Within these areas, the cockroaches prefer sites close to moisture and food, making them common pests in kitchens, bathrooms and food-storage areas.
Of the cockroaches which infest structures, the German cockroach is probably found more frequently than other species.