The American cockroach is one of the largest roaches in Australia, growing up to 50mm in length. These roaches are a reddish-brown colour, with a distinctive yellow band behind their head. They have fully developed wings that cover their abdomen. They can run fast and are capable of clumsy flight.
Habitat & Lifestyle
American cockroaches live in outdoor environments such as drains, sewers and garbage dumps. They prefer high temperatures and cannot tolerate cold. They are attracted to decaying matter and sweet foods. They enter homes through gaps, seeking out basements, bathrooms and moist areas. Water is essential to their survival. They can live in drier areas if a water source is available.
The eggs are contained within a protective case (the ootheca). The dark brown case is around 8mm long and dropped by females before hatching. It may also be glued to a surface by secretions. Nymphs are pale and wingless, later turning a reddish brown.