''Neoephemera'' is a genus of large squaregill mayflies in the family Neoephemeridae first described by McDunnough (1925). and containing approximately six described species in ''Neoephemera''.

Species

These six species belong to the genus ''Neoephemera'': * ''

Neoephemera bicolor ''Neoephemera'' is a genus of large squaregill mayflies in the family Neoephemeridae first described by McDunnough (1925). and containing approximately six described species in ''Neoephemera''. Species These six species belong to the genus ''N ...

'' * ''

Neoephemera compressa ''Neoephemera'' is a genus of large squaregill mayflies in the family Neoephemeridae first described by McDunnough (1925). and containing approximately six described species in ''Neoephemera''. Species These six species belong to the genus ''N ...

'' * '' Neoephemera maxima'' * ''

Neoephemera projecta ''Neoephemera'' is a genus of large squaregill mayflies in the family Neoephemeridae first described by McDunnough (1925). and containing approximately six described species in ''Neoephemera''. Species These six species belong to the genus ''N ...

'' * '' Neoephemera purpurea'' * '' Neoephemera youngi'' An extinct species, '' Neoephemera antiqua'', has also been assigned to the genus. The species is known only from the type locality in the

Ypresian In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by the Eocene Lutetian Age. The Ypresian ...

Klondike Mountain Formation of northeast Central

Washington state Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington ...

Species

References

Further reading