| Nesameletidae | |
|---|---|
|   | |
| Nesameletus, Arthur's Pass, New Zealand | |
| Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Ephemeroptera | 
| Family: | Nesameletidae | 
Nesameletidae is a family of mayflies in the order Ephemeroptera. There are at least three genera and about eight described species in Nesameletidae. [1]
These three genera belong to the family Nesameletidae:

Heptagenia is a genus of flatheaded mayflies in the family Heptageniidae. There are at least 20 described species in Heptagenia.

Callibaetis is a genus of small minnow mayflies in the family Baetidae. There are at least 30 described species in Callibaetis.

Baetiscidae is a family of armored mayflies in the order Ephemeroptera. There are at least 2 genera and about 12 described species in Baetiscidae.
Neoephemeridae is a family of large squaregill mayflies in the order Ephemeroptera. There are at least 4 genera and about 17 described species in Neoephemeridae.

Prosopistomatidae is a family of mayflies in the order Ephemeroptera. There are at least 2 genera and 30 described species in Prosopistomatidae.
Irpacaenis is a genus of small squaregilled mayflies in the family Caenidae. There are at least three described species in Irpacaenis.
Wundacaenis is a genus of small squaregilled mayflies in the family Caenidae. There are at least three described species in Wundacaenis.
Tricorythidae is a family of mayflies in the order Ephemeroptera. There are about 6 genera and at least 40 described species in Tricorythidae.
Drunella is a genus of spiny crawler mayflies in the family Ephemerellidae. There are at least 20 described species in Drunella.
Ametropodidae is a family of mayflies in the order Ephemeroptera. There are at least three genera and three described species in Ametropodidae.
Euthyplociidae is a family of mayflies in the order Ephemeroptera. There are about 7 genera and more than 20 described species in Euthyplociidae.
Acanthophlebia is a genus of pronggill mayflies in the family Leptophlebiidae. There is one described species in Acanthophlebia, A. cruentata.
Nesameletus ornatus, commonly known as the small swimming mayfly, is a species of mayfly in the Nesameletidae family. It is endemic to New Zealand. It was first described by Alfred Edwin Eaton in 1883.

Isonychia is a genus of brushlegged mayflies in the family Isonychiidae, the sole genus of the family. There are more than 30 described species in Isonychia.

Furcatergalia is a suborder of mayflies in the order Ephemeroptera. There are about 14 families and at least 1,700 described species in Furcatergalia.

Polymitarcyidae is a family of pale burrower mayflies in the order Ephemeroptera. There are about 10 genera and more than 90 described species in Polymitarcyidae.
Metretopodidae is a family of cleftfooted minnow mayflies in the order Ephemeroptera. There are at least 3 genera and more than 20 described species in Metretopodidae.
Acanthametropodidae is a family of sand-dwelling mayflies in the order Ephemeroptera. There are at least two genera and four described species in Acanthametropodidae.
Arthropleidae is a family of flatheaded mayflies in the order Ephemeroptera. There are at least two genera, one of which is extinct, in Arthropleidae.
Penelomax is a genus of spiny crawler mayflies in the family Ephemerellidae. There is one described species in Penelomax, P. septentrionalis.