''Psilodercidae'' is a family of

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 first described as a subfamily of

Ochyroceratidae Ochyroceratidae is a six-eyed spider family, with 165 described species in ten genera. They are common inhabitants of caves and the tropical forest litter of South Africa, the Caribbean, Asia and South America. Considered an ecological counterpar ...

by Machado in 1951 and raised to family rank by J. Wunderlich in 2008. These spiders can be distinguished by the "segestriid positioning" of their six eyes, the absence of leg bristles, strong

apical Apical means "pertaining to an apex". It may refer to: *Apical ancestor, refers to the last common ancestor of an entire group, such as a species (biology) or a clan (anthropology) *Apical (anatomy), an anatomical term of location for features loc ...

bristles on the cymbium, and several pairs of

spermatheca The spermatheca (pronounced plural: spermathecae ), also called receptaculum seminis (plural: receptacula seminis), is an organ of the female reproductive tract in insects, e.g. ants, bees, some molluscs, oligochaeta worms and certain other in ...

e in females.

Genera

, 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 ...

accepts the following genera, but it is relatively unstudied and may change as more information becomes available. In particular, Wunderlick remarked that ''Psiloderces'' is too broad and should be split into smaller, more distinct groups. *'' Althepus'' Thorell, 1898 — Asia *''

Flexicrurum ''Flexicrurum'' is a genus of spiders from China similar to the genera '' Althepus'' and '' Leclercera''. Tong and Li originally placed the genus in ''Ochyroceratidae'', but Tong later moved it to ''Psilodercidae''. Males are generally smaller th ...

'' Tong & Li, 2007 — China *'' Leclercera'' Deeleman-Reinhold, 1995 — Asia *''

Luzonacera ''Luzonacera'' is a genus of spiders in the family Psilodercidae. It was erected by Feng-Yuan Li and Shu-Qiang Li in 2017. , it contains five species found on the Philippine island of Luzon Luzon (; ) is the largest and most populous island ...

'' F. Y. Li & S. Q. Li, 2017 — Philippines *''

Merizocera ''Merizocera'' is a genus of six eyed spiders in the family Psilodercidae, first described by Jean-Louis Fage in 1912.Fage, L. (1912). Etudes sur les araignées cavernicoles. I. Revision des Ochyroceratidae (n. fam.). In: Biospelogica, XXV. Arch ...

'' Fage, 1912 — Asia *''

Priscaleclercera ''Priscaleclercera'' is a genus of araneomorph spiders in the family Psilodercidae, containing seven species. The genus was first described by Jorge Wunderlich in 2017, and its fossils have been found in Burmese amber, while live specimens have b ...

'' Wunderlich, 2017 — Myanmar, Indonesia *''

Psiloderces ''Psiloderces'' is a genus of six eyed spiders in the family Psilodercidae, first described by Eugène Simon in 1892.Simon, E. (1892c). Arachnides. In: Raffrey, A., Bolivar, I. & Simon, E.: Etudes cavernicoles de l'île Luzon. Voyage de M. E. Sim ...

'' Simon, 1892 — Asia *''

Qiongocera ''Qiongocera'' is a genus of Southeast Asian araneomorph spiders in the family Psilodercidae, containing the single species, ''Qiongocera hongjunensis''. It was first described by F. Y. Li & S. Q. Li in 2017, and has only been found in China ...

'' F. Y. Li & S. Q. Li, 2017 — China *''

Relictocera ''Relictocera'' is a genus of spiders from Southeast Asia in the family Psilodercidae ''Psilodercidae'' is a family of spiders first described as a subfamily of Ochyroceratidae by Machado in 1951 and raised to family rank by J. Wunderlich in 20 ...

'' F. Y. Li & S. Q. Li, 2017 — Vietnam *''

Sinoderces ''Sinoderces'' is a genus of spiders from Thailand in the family Psilodercidae ''Psilodercidae'' is a family of spiders first described as a subfamily of Ochyroceratidae by Machado in 1951 and raised to family rank by J. Wunderlich in 2008. Thes ...

'' F. Y. Li & S. Q. Li, 2017 — China *''

Thaiderces ''Thaiderces'' is a genus of spiders from Southeast Asia in the family Psilodercidae ''Psilodercidae'' is a family of spiders first described as a subfamily of Ochyroceratidae by Machado in 1951 and raised to family rank by J. Wunderlich in 200 ...

'' F. Y. Li & S. Q. Li, 2017 — Thailand

References

External links

{{Araneae Araneomorphae families