The family Dipluridae, known as curtain-web spiders are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion. A number of genera, including that of the Sydney funnel-web spider (Atrax), used to be classified in this family but have now been moved to Hexathelidae.
The spider family Liphistiidae, recognized by Tamerlan Thorell in 1869, comprises 8 genera and about 100 species of medium-sized spiders from Southeast Asia, China, and Japan. They are among the most basal living spiders, belonging to the suborder Mesothelae. In Japan, the Kimura spider is well known.
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genera, and is the most common arthropod found in human dwellings throughout the world.
Scaffold web spiders (Nesticidae) is a family of araneomorph spiders closely allied with tangle web spiders. Like the "Theridiidae", these spiders have a comb of serrated bristles on the hind tarsi that are used to pull silk bands from the spinnerets. It contains 16 genera and about 300 species, many of which are associated with caves or overhangs. The genus Nesticus is the type for the family and is found throughout the world. The related Eidmannella has speciated considerably in Texas caves and includes some extremely localized species that are considered threatened. One species, Eidmannella pallida, is found in caves and under overhangs, but also in agricultural fields and other habitats away from such restricted areas. The genus Carpathonesticus is found in central Eurasia.
Pimoidae is a small family of araneomorph spiders first described by J. Wunderlich in 1986. It contains 37 species in four genera and is monophyletic. It is closely related to the Linyphiidae, and is sometimes used as a synonym for that family.
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 counterpart of the Linyphiidae of the northern temperate zone, species are especially diverse in the Indo-Pacific region.
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 than 2 mm, but the size of females is unknown. The name is derived from Latin flex "curved", and crur "leg", referring to the inner turned palpal tibia of the male. As of 2019 three described species have been found in caves of Hainan Island.
Sinopimoa is a monotypic genus of Chinese sheet weavers containing the single species, Sinopimoa bicolor. It was first described by S. Q. Li & J. Wunderlich in 2008, and is found in China. It was originally placed in its own family (Sinopimoidae) but is now considered a member of the Linyphiidae, and it may be a member of the Erigoninae.
Psiloderces is a genus of six eyed spiders in the family Psilodercidae, first described by Eugène Simon in 1892
Leclercera is a genus of spiders in the family Psilodercidae found in southeast Asia, including Thailand, Nepal, and the Philippines. It was first described in 1995 by Christa L. Deeleman-Reinhold, who named it after a fellow collector of Asian spiders. She originally placed under Ochyroceratidae, but it was later moved it to Psilodercidae. It is named for Philippe Leclerc, a collector of spiders in southeast Asia.
Sinolinyphia is a monotypic genus of East Asian sheet weavers containing the single species, Sinolinyphia henanensis. It was first described by J. Wunderlich & S. Q. Li in 1995, and has only been found in China.
Luzonacera is a genus of spiders in the family Psilodercidae. It was first described by Li & Li in 2017. As of February 2019, it contains five species found in Luzon.
Sinoderces is a genus of spiders from Thailand in the family Psilodercidae first described in 2017. As of February 2019 it contains only two species.
Thaiderces is a genus of spiders from Thailand in the family Psilodercidae, family first described in 2017. As of February 2019 it contains only two species.
Priscaleclercera is a genus of extinct araneomorph spiders in the family Psilodercidae, containing six species. The genus was first described by Jorge Wunderlich in 2017, and has only been found in Burmese amber.
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.
Relictocera is a genus of southeast Asian araneomorph spiders in the family Psilodercidae, containing the single species, Relictocera qiyi. It was first described by F. Y. Li & S. Q. Li in 2017, and has only been found in Vietnam.
