''Triaeris macrophthalmus'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...

from the family Oonopidae. It was described by

Lucien Berland Lucien Berland (14 May 1888 in Ay, Marne – 18 August 1962 in Versailles)Jean-Jacques Amigo, « Berland (Lucien) », in Nouveau Dictionnaire de biographies roussillonnaises, vol. 3 Sciences de la Vie et de la Terre, Perpignan, Publications de ...

in 1914 and is endemic to

Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and ...

. In 2012,

Norman I. Platnick Norman Ira Platnick (December 30, 1951 – April 8, 2020) was an American biological systematist and arachnologist. At the time of his death, he was a professor emeritus of the Richard Gilder Graduate School and Peter J. Solomon Family Curator Em ...

and co-authors described the genus ''Triaeris'' as "an enigma wrapped around a mystery". They consider that most species assigned to the genus following Simon in 1890 and before 2012 do not belong to ''Triaeris'', including ''T. macrophthalmus'', which they suggest belongs to one of a group of related genera. , no alternative generic assignment has been accepted by the

World Spider Catalog The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of ...

References

Oonopidae Spiders of Africa Endemic fauna of Tanzania Spiders described in 1914 {{oonopidae-stub