Linyphiidae is a family of very small spiders comprising 4667 described species in 618 genera worldwide. This makes Linyphiidae the second largest family of spiders after the Salticidae. The family is poorly known; new genera and species are still being discovered throughout the world. The newest such genus is Yuelushannus from China, formally described in May 2020. Because of the difficulty in identifying such tiny spiders, there are regular changes in taxonomy as species are combined or divided.
Scotinotylus is a genus of sheet weavers that was first described by Eugène Louis Simon in 1884.
Cautinella is a monotypic genus of South American dwarf spiders containing the single species, Cautinella minuta. It was first described by Alfred Frank Millidge in 1985, and has only been found in Chile.
Diploplecta is a genus of South Pacific dwarf spiders that was first described by Alfred Frank Millidge in 1988.
Hypsocephalus is a genus of dwarf spiders that was first described by Alfred Frank Millidge in 1978.
Jacksonella is a genus of dwarf spiders that was first described by Alfred Frank Millidge in 1951. As of May 2019 it contains only three species, found in Cyprus, Greece, and Korea: J. bidens, J. falconeri, and J. sexoculata.
Kenocymbium is a genus of Southeast Asian dwarf spiders that was first described by Alfred Frank Millidge & A. Russell-Smith in 1992. As of May 2019 it contains only two species, both found in Indonesia, Malaysia, and Thailand: K. deelemanae and K. simile.
Maorineta is a genus of dwarf spiders that was first described by Alfred Frank Millidge in 1988.
Metapanamomops is a monotypic genus of European dwarf spiders containing the single species, Metapanamomops kaestneri. It was first described by Alfred Frank Millidge in 1977, and has only been found in Germany and Ukraine.
Neonesiotes is a genus of dwarf spiders that was first described by J. A. Beatty, J. W. Berry & Alfred Frank Millidge in 1991. As of May 2019 it contains only two species, both found in Fiji, Kiribati, Marshall Islands, Samoa, and Seychelles: N. hamatus and N. remiformis.
Notholepthyphantes is a genus of South American dwarf spiders that was first described by Alfred Frank Millidge in 1985. As of May 2019 it contains only two species, both found in Chile: N. australis and N. erythrocerus.
Notiohyphantes is a genus of dwarf spiders that was first described by Alfred Frank Millidge in 1985. As of May 2019 it contains only three species, found in Brazil, Chile, Ecuador, Mexico, and Peru: N. excelsus, N. laudatus, and N. meridionalis.
Novafrontina is a genus of dwarf spiders that was first described by Alfred Frank Millidge in 1991. As of May 2019 it contains only three species, found in Ecuador, Peru, Colombia, Mexico, and Brazil: N. bipunctata, N. patens, and N. uncata.
Novalaetesia is a genus of South Pacific dwarf spiders that was first described by Alfred Frank Millidge in 1988. As of May 2019 it contains only two species, both found in New Zealand: N. anceps and N. atra.
Onychembolus is a genus of South American dwarf spiders that was first described by Alfred Frank Millidge in 1985. As of May 2019 it contains only two species, both found in Chile and Argentina: O. anceps and O. subalpinus.
Palaeohyphantes is a monotypic genus of Australian dwarf spiders containing the single species, Palaeohyphantes simplicipalpis. It was first described by Alfred Frank Millidge in 1984, and has only been found in Australia.
Prinerigone is a genus of sheet weavers that was first described by Alfred Frank Millidge in 1988. As of May 2019 it contains only three species and one subspecies, found in Europe, on the Prince Edward Islands, and the Madeira Archipelago: P. aethiopica, P. pigra, P. vagans, and P. v. arabica.
Psilocymbium is a genus of South American sheet weavers that was first described by Alfred Frank Millidge in 1991.
Schistogyna is a monotypic genus of South American sheet weavers containing the single species, Schistogyna arcana. It was first described by Alfred Frank Millidge in 1991, and has only been found in Chile and on the Juan Fernández Islands.
Michael I. Saaristo was a Finnish arachnologist, with a particular interest in the spiders of the Seychelles. The World Spider Catalog lists 61 genus names or synonyms and 109 species names or synonyms of which he is the sole or co-author.
