Gromphadorhina

Gromphadorhina is a genus of large, flightless cockroaches from southern Madagascar;^[1] they are typical of the tribe Gromphadorhini (hissing cockroaches) and common in the pet trade.^[2][1] In the older literature, the name is sometimes misspelled as Gromphadorrhina.^[2]

Gromphadorhina
Gromphadorhina portentosa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Blattodea
Family:	Blaberidae
Subfamily:	Oxyhaloinae
Tribe:	Gromphadorhini
Genus:	Gromphadorhina Brunner von Wattenwyl, 1865
Synonyms
Gromphadorrhina

Species

The Cockroach Species File^[2] 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^{[3] [better source needed]}and G. picea.^[1]