Madagascar Hissing Cockroach
Gromphadorhina portentosa

The adult Madagascar hissing cockroach is a large, wingless cockroach of Madagascar’s humid forest floor, often sheltering beneath logs and bark by day. It is a nocturnal scavenger that eats fallen fruit, decaying vegetation, and other decomposing organic material. When threatened or competing with rivals, it produces a loud hiss by forcing air through spiracles along the body. Adult males have raised bumps on the pronotum that are used in shoving contests.
- Type
- Cry
- Conservation status
- NE
Growth chain
- Hissing Cockroach Nymph
- Madagascar Hissing Cockroach