''Psilochorus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

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 ...

s in the family

Pholcidae The Pholcidae are a family of araneomorph spiders. The family contains over 1,800 individual species of pholcids, including those commonly known as cellar spider, daddy long-legs spider, carpenter spider, daddy long-legger, vibrating spid ...

Description

The abdomen of ''Psilochorus'' species is humped and oval. The eight eyes are located in two rows.Fitch 1963

Distribution

Most described species are found in the

New World The term ''New World'' is often used to mean the majority of Earth's Western Hemisphere, specifically the Americas."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: Oxford University Press, p. ...

, especially from Mexico and the United States, but other species occur in

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the sout ...

. ''P. simoni'' is found only in

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel ...

. ''P. nigromaculatus'' was described from

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the wide Torr ...

, but is certainly misplaced.Huber 2000

Name

The first part of the genus name is from

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...

''psilos'' "naked". The second part could be derived from a Greek word for "dance", or "separate".

Species

* '' Psilochorus acanthus'' Chamberlin & Ivie, 1942 — USA * '' Psilochorus agnosticus'' Chamberlin, 1924 — Mexico * '' Psilochorus apicalis'' Banks, 1921 — USA * '' Psilochorus bantus'' Chamberlin & Ivie, 1942 — USA * '' Psilochorus bromelicola'' (Huber, 2019) — Brazil * '' Psilochorus bruneocyaneus'' Mello-Leitão, 1941 —

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

* '' Psilochorus californiae'' Chamberlin, 1919 — USA * '' Psilochorus cambridgei'' Gertsch & Davis, 1937 — Mexico * '' Psilochorus coahuilanus'' Gertsch & Davis, 1937 — Mexico * '' Psilochorus concinnus'' Gertsch, 1973 — Mexico * '' Psilochorus conjunctus'' Gertsch & Davis, 1942 — Mexico * '' Psilochorus cordatus'' (Bilimek, 1867) — Mexico * '' Psilochorus cornutus'' (Keyserling, 1887) — USA * '' Psilochorus delicatus'' Gertsch, 1971 — Mexico * '' Psilochorus diablo'' Gertsch, 1971 — Mexico * '' Psilochorus dogmaticus'' Chamberlin, 1924 — Mexico * '' Psilochorus durangoanus'' Gertsch & Davis, 1937 — Mexico * '' Psilochorus fishi'' Gertsch, 1971 — Mexico * '' Psilochorus hesperus'' Gertsch & Ivie, 1936 — USA * '' Psilochorus hooki'' Slowik, 2009 — USA * '' Psilochorus imitatus'' Gertsch & Mulaik, 1940 — USA, Mexico * '' Psilochorus inyo'' Slowik, 2009 — USA * '' Psilochorus itaguyrussu'' Huber, Rheims & Brescovit, 2005 — Brazil * '' Psilochorus minimus'' Schmidt, 1956 —

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ' ...

* '' Psilochorus minutus'' Banks, 1898 — Mexico * '' Psilochorus murphyi'' Gertsch, 1973 — Mexico * '' Psilochorus pallidulus'' Gertsch, 1935 — USA, Mexico * '' Psilochorus papago'' Gertsch & Davis, 1942 — USA, Mexico * '' Psilochorus pullulus'' (Hentz, 1850) — New World * '' Psilochorus redemptus'' Gertsch & Mulaik, 1940 — USA, Mexico * '' Psilochorus rockefelleri'' Gertsch, 1935 — USA * '' Psilochorus russelli'' Gertsch, 1971 — Mexico * '' Psilochorus sectus'' Mello-Leitão, 1939 — Brazil * '' Psilochorus simoni'' (Berland, 1911) — Europe * '' Psilochorus sinaloa'' Gertsch & Davis, 1942 — Mexico * '' Psilochorus taperae'' Mello-Leitão, 1929 — Brazil * '' Psilochorus tellezi'' Gertsch, 1971 — Mexico * '' Psilochorus texanus'' Slowik, 2009 — USA, Mexico * '' Psilochorus topanga'' Chamberlin & Ivie, 1942 — USA * '' Psilochorus utahensis'' Chamberlin, 1919 — USA * '' Psilochorus ybytyriguara'' Huber, Rheims & Brescovit, 2005 — Brazil

Notes

References

* (1963): Spiders of The University of Kansas Natural History Reservation and Rockefeller Experimental Tract. * (2000): New World Pholcid Spiders (Araneae: Pholcidae): A revision at generic level. ''Bulletin of the American Museum of Natural History'' 254: 1–347. (with link to PDF) * (2009)
The world spider catalog
version 9.5. ''American Museum of Natural History''.

External links

* Universität Bonn

(diagnostic photographs of ''P. simoni'') * BugGuide.net
Photograph of mating ''P. pullulus''
Pholcidae Araneomorphae genera Spiders of North America Spiders of Central America Spiders of South America {{Pholcidae-stub