Madagascar Hissing Cockroach

Scientific Name: Gromphadorhina portentosa

The hissing sound these animals make comes from forcing air out of pores on their sides. Learn more about hissing cockroaches.

  • Size:
    • Weight: 0.5 to 1 ounce
    • Length: 2 to 3 inches
  • Diet: Plant life
  • Habitat: Jungle floor of Madagascar
  • Range in the Wild: Madagascar

Conservation Status

Listed as Least Concern - this species is widespread

Revised 4/28/26

Madagascar Hissing Cockroach