American cockroach adults grow to an average length of around 4 cm (1.6 in) and about 7 mm (0.28 in) tall. They are reddish brown and have a yellowish margin on the body region behind the head. Immature cockroaches resemble adults except they are wingless.
Largest domestic cockroach species. Average 40mm long and 7mm high.
Resemble the adults except are wingless.
Typically reside outdoors near moist, humid environments such as drains, sewers and rubbish piles. Prefer warm environments like roof voids and wall cavities.
Fastest running insect, can dart out of sight very quickly if a light suddenly turns on or someone enters a room. Moderate flyers: Can fly in as well as scurry indoors.
Omnivorous and opportunistic feeders; can eat a wide variety of materials such as cheese, beer, tea, leather, bakery products, cellulose in book bindings, manuscripts, glue, hair, dried skin, dead animals, plant materials and soiled clothing. They are particularly fond of fermenting foods. They’ll even feed upon dead or wounded cockroaches of their own or other species.
Females carry egg case (ootheca) for about a week before dropping it and continuing her search for food and shelter. It incubates for about 2 months before hatching and continuing the life cycle. Ootheca carries approximately 12 young. Female cockroaches can produce up to 800 cockroaches in 1 year.