Darthus

Darthus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Ephemeroptera
Suborder:	Schistonota
Superfamily:	Heptagenoidea
Family:	Heptageniidae
Genus:	Darthus

Darthus is a genus of mayflies in the family Heptageniidae.

...
Wikipedia