Leptohyphidae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Ordo: Ephemeroptera
Subordo: Furcatergalia
Infraordo: Pannota
Superfamilia: Ephemerelloidea

Familia:Leptohyphidae
Genera (14): Ableptemetes – Allenhyphes – Amanahyphes – Cabecar – Haplohyphes – Leptohyphes – Leptohyphodes – Lumahyphes – Macunahyphes – Traverhyphes – Tricorythodes – Tricorythopsis – Vacupernius – Yaurina

Above genera are complete and are taken from the Catalogue of Life: 2019 Annual Checklist
References

Almeida, E. & Mariano, R. 2015. New species and first records of Macunahyphes Dias, Salles & Molineri, 2005 (Ephemeroptera: Leptohyphidae) from Bahia state, Brazil. Zootaxa 4000(4): 497–500. DOI: 10.11646/zootaxa.4000.4.9. Preview (PDF) Reference page.
Belmont, E.L.L., Cruz, P.V. & Hamada, N. 2015. A new species of Tricorythopsis Traver, 1958 (Leptohyphidae) and occurrence of Pannota (Insecta: Ephemeroptera) species in Amapá state, Brazil. Zootaxa 4007(1): 104–112. DOI: 10.11646/zootaxa.4007.1.7. Preview (PDF) Reference page.
Belmont, E.L.L.; Salles, F.F.; Hamada, N. 2011: Three new species of Leptohyphidae (Insecta: Ephemeroptera) from Central Amazon, Brazil. Zootaxa, 3047: 43–53. Preview
Belmont, E.L.L. ; Salles, F.F. & Hamada, N., 2012: Leptohyphidae (Insecta, Ephemeroptera) of Amazonas state, Brazil: new records, new combination, new species and identification key for nymphal stages. Revista Brasileira de Entomologia 56 (3): 289–296. Full article: [1].
Boldrini, R., Santos, G.C. & Oliveira, D.R. 2015. First record of the genus Lumahyphes Molineri, 2004 (Ephemeroptera: Leptohyphidae) from Brazil with description of a new species. Zootaxa 4013(1): 143–146. DOI: 10.11646/zootaxa.4013.1.11. Preview (PDF) Reference page.
Dias, L.G. & F.F. Salles, 2006: A new species of Tricorythodes Ulmer (Ephemeroptera: Leptohyphidae) from Minas Gerais, southeastern Brazil. Neotropical Entomology 35 (1): 56–58. Abstract and full species: DOI: 10.1590/S1519-566X2006000100008.
2011: Zootaxa, 3050: 63–68. Preview

Links

https://web.archive.org/ Catalogue of Life: 2019 Annual Checklist

Leptohyphidae is a family of mayflies with some 140 described species in 12 genera.
References
Belmont, E.L.L.; F.F. Salles; N. Hamada (2011). "Three new species of Leptohyphidae (Insecta: Ephemeroptera) from Central Amazon, Brazil" (PDF). Zootaxa. 3047: 43–53. doi:10.11646/zootaxa.3047.1.2.