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Cockroach (American)

Common Name:          American Cockroach
Scientific Name:          Periplaneta americana (Linnaeus)

Class/Order/family:      Insecta/Blattodea/Blattidae

Metamorphosis:          Incomplete





Approximately 2.5cm long but can be up to 4cm, mahogany colouring with a yellow edge to the head and around the shield.




Similar appearance to the adults but do not have wings.

Ootheca (egg casing):

Egg cases are about 9mm long, brown, and purse shaped.


Relatively slow.

Females produce on average 150 eggs in a lifetime.

Nymphs emerge in 6 to 8 weeks and require 6 to 12 months to mature.



Adult cockroaches can live up to one year.



The American cockroach more commonly is found in warm, moist areas of industrial or commercial buildings not usually in the UK but can be transported in. Furnace or boiler rooms and heat tunnels are most likely environments.


They do not like light and their compound eyes have over 2000 lens.

The insect can move surprisingly quickly, when someone enters a room, they will disappear into small cracks with lightening speed. It is considered one of the fastest running insects.

The American cockroach is a scavenger that feeds on decaying organic matter as well as a variety of other foods. They like fermenting foods.

Large infestations are not common.