Project Description

Madagascar Hissing Cockroach

Gromphadorhina portentosa

Aquarium Location



In the daytime, they hide under loose bark and tree holes. At night, they come out to forage on fallen fruit, fungi, decaying plant material, carcasses. Hissing cockroaches are most active after an evening rainfall.


These cockroaches are only found on the island of Madagascar in both the dry forests and rainforests.


Hissing cockroaches are detritivores that forage on decaying plant material. They will also eat small insects and animal carcasses.

Fun Facts

When a hissing cockroach molts, a white, black-eyed roach emerges. The cockroach will eat the exoskeleton for nutrients.
These cockroaches make a “hissing” sound by pushing air forcefully through a pair of modified spiracles. The spiracles are openings in the abdomen that are normally used for breathing in insects.
The average lifespan of a hissing cockroach is 2-3 years, but in captivity they can live up to 5 years.
Some research suggests that hissing cockroaches will clump together to prevent water loss during the long tropical dry season in Madagascar.
Hissing cockroaches can create 5 distinct hisses. They will hiss when alarmed, during courtship, and to defend territory.

Cool Adaptation

A Hissing cockroach can tuck its head and antennae under its thorax to mimic the head of a large, aggressive animal.

Conservation Connection

Hissing cockroaches can be found in the forests of Madagascar; unfortunately, forest degradation and fragmentation are occurring in Madagascar. It’s important to conserve these forest habitats not only for the hissing cockroaches, but also for all of the animals that live in these habitats.

cheap lasix no prescription buy lasix online no prescription generic lasix buy discount priligy priligy online no prescription order priligy online mastercard order tadalafil buy tadalafil online buy tadalafil tablet buy sildenafil mastercard buy sildenafil online no prescription generic sildenafil buy synthroid online without a prescription buy synthroid online order synthroid online without prescription order diflucan online mastercard diflucan online pharmacy purchase diflucan buy accutane online without a prescription buy accutane no prescription can you buy accutane online buy zoloft zoloft online without prescription buy zoloft online cheap buy strattera cheap no prescription buy strattera without prescription buy strattera cheap online legal buy propecia online buy propecia without prescription buy generic propecia