Gromphadorhina

Gromphadorhina is a genus of large, flightless cockroaches from southern Madagascar; they are typical of the tribe Gromphadorhini (hissing cockroaches) and common in the pet trade. In the older literature, the name is sometimes misspelled as Gromphadorrhina.

Species
The Cockroach Species File lists:
 * 1) Gromphadorhina grandidieri Kirby, 1904
 * 2) Gromphadorhina oblongonota van Herrewege, 1973
 * 3) Gromphadorhina picea van Herrewege, 1973
 * 4) Gromphadorhina portentosa (Schaum, 1853) - type species (as Hormetica portentosa Schaum)

As pets
All four Gromphadorhina species are widely kept as exotic pets, where the most well-known species is the Madagascar hissing cockroach, (G. portentosa), though this is debatable as at least two other species in the genus are commonly confused with it; G. oblongonota and G. picea.