Micke Grove Zoo

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Madagascar Giant Hissing Cockroach

Gromphadorhina portentosa

Habitat: Diverse habitats

Range: Madagascar

Natural Diet: Primarily vegetable matter

Status in the Wild: Common (Least Concern)


Animal Facts

Madagascar giant hissing cockroaches can grow up to 3 inches in length. Unlike other cockroaches, these insects do not have wings. They hiss as a defensive reaction to distract predators. The roaches are able to pass air through respiratory openings or spiracles that are located along their abdomen. Only adult roaches are able to hiss. Males also use hissing to compete with other males and to attract females.

Compared to males, females have slender antennae


Distributional range

Hissing roaches are endemic to Madagascar, the island in black to the right of Africa.