Oriental cockroach

Family Name: Blattidae
Scientific Name: Blatta orientalis

Adults 20-24mm long, dark brown nearly black in colour. Wings of the male cover two thirds of the abdomen, wings of the female are vestigial. Can climb rough but not smooth vertical surfaces. Gregarious and nocturnal, they spend their day hiding in cracks and crevices. Generally they prefer warmer dryer environments.

Habitat
Common in commercial premises associated with the production of handling food. They spend the day hiding in around areas such as sinks, drains, cookers, backs of cupboards and in refrigerator motor compartments. They especially favour buildings with service ducts and complex plumbing installations.

Biology and Behaviour
Generally 2 pairs of wings, although these may be reduced or even absent. Potential vector of diseases such as dysentery, gastroenteritis, typhoid and poliomyelitis. Their diet is omnivorous and includes fermenting substances, soiled septic dressing, hair, leather, parchment, wallpaper, faeces and food for human consumption.

 

German Cockroach

Family Name: Blattidae
Scientific Name: Blattella germanica

Adults 10-15mm , yellowish brown with two longitudinal dark marks on the pronotum. Wings well developed in both sexes, can readily climb both rough and vertical polished surfaces. Gregarious and nocturnal, they spend the day hiding in cracks and crevices. Generally prefer warmer humid environments.

Habitat
Common in commercial premises associated with the production of handling food. They spend the day hiding in around areas such as sinks, drains, cookers, backs of cupboards and in refrigerator motor compartments. They especially favour buildings with service ducts and complex plumbing installations.

Biology and Behaviour
Generally 2 pairs of wings, although these may be reduced or even absent. Potential vector of diseases such as dysentery, gastroenteritis, typhoid and poliomyelitis. Their diet is omnivorous and includes fermenting substances, soiled septic dressing, hair, leather, parchment, wallpaper, faeces and food for human consumption.