(Stenacron) (Stenacron) is a biological genus in the family Heptageniidae and order Ephemeroptera (Mayflies).
Stenacron candidum
Stenacron carolina
Stenacron floridense
Stenacron gildersleevei
Stenacron interpunctatum
Stenacron minnetonka
Stenacron pallidum
Anepeorus
Cinygma
Cinygmula
Ecdyonurus
Epeorus
Heptagenia
Ironodes
Leucrocuta
Maccaffertium
Macdunnoa
Nixe
Raptoheptagenia
Rhithrogena
Spinadis
Stenacron
Stenonema