Welcome to Lincoln Park Zoo’s new web app! Share your feedback
Madagascar Hissing Cockroach
Regenstein African Journey
Did You Know?
- Madagascar hissing cockroaches are wingless and have one set of antennae.
- These cockroaches are not pests. They do not inhabit human dwellings.
- Madagascar hissing cockroaches are known for the hissing sound they make by exhaling air through their breathing holes. Most invertebrates make noise by rubbing body parts together or using vibrating membranes, so this is unusual. Their hiss is an alarm cry and used in mating and aggressive encounters between males.
Don’t See the Animals?
Why aren’t animals visible at all times? To promote positive animal welfare, we provide animals with choices. They can choose to spend time in areas that are out of public view.
Take an Animal Home with You
Overview
Scientific Name: Gromphadorhina portentosa
Class: Insects
Diet: Fruit and other plant materials
Range: Madagascar
Endangered Status: Not Listed
More Information
Madagascar hissing cockroaches are a large insect species that measures between 2–3 inches long and weighs up to 0.8 ounces on average. They are brown and yellow with a shiny exoskeleton. A honey-colored abdomen, at their back end, is the lightest part of their body, while the head is the darkest. Males have larger horns than females.
These animals live in colonies and are active scavengers at night in the forests they live in. Males can be aggressive toward one another. The females bear live young. They create an ootheca, a cocoon-like egg case, that carries their eggs and neonatal nymphs inside their bodies. Up to 60 nymphs can be born to one mother at a time.
