Polyzosteria cuprea is a species of bush cockroach found in south western Australia. It is a diurnal species and its typical habitat is arid regions and eucalyptus woodland.
Polyzosteria cuprea is a wingless, dorsally-flattened, charcoal-grey insect. There is a large, cream-coloured patch at the front of the tergum (dorsal plate) of the prothorax, smaller cream markings on the sides of the next two terga, and cream bands on the legs.