Heterogyrus

Heterogyrus milloti is a species of beetle in the family Gyrinidae, the only species in the genus Heterogyrus.^[1] It is endemic to Madagascar, and forms a basal lineage within the family, estimated to have diverged from all other gyrinids (aside from the even earlier branching Spanglerogyrus) 200 million years ago. It is suggested to be closely related to the fossil genera Mesogyrus, Cretotortor and Baissogyrus which constitute the subfamily Heterogyrinae.^[2]

Heterogyrus milloti
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Adephaga
Family:	Gyrinidae
Subfamily:	Heterogyrinae
Genus:	Heterogyrus Legros, 1953
Species:	H. milloti
Binomial name
Heterogyrus milloti Legros, 1953