Ipa is a genus of dwarf spiders that was first described by Michael I. Saaristo in 2007.
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.
Bianor is a genus of boreal jumping spiders that can grow to 3 and 4 mm. The robust shiny body and northerly distribution are distinctive. Males can be easily recognized by his swollen forelegs and females have orange legs. It was first described by George and Elizabeth Peckham in 1886, who names it after the mythical son of Hercules.
Neriene is a genus of sheet weavers that was first described by John Blackwall in 1833.
Lepthyphantes is a genus of dwarf spiders that was first described by Anton Menge in 1866.
Tenuiphantes is a genus of sheet weavers that was first described by Michael I. Saaristo & A. V. Tanasevitch in 1996.
Agyneta is a genus of dwarf spiders that was first described by J. E. Hull in 1911.
Helsdingenia ceylonica, is a species of spider of the genus Helsdingenia. It is found only in Nepal and Sri Lanka.
Nesioneta is a genus of dwarf spiders that was first described by J. A. Beatty, J. W. Berry & Alfred Frank Millidge in 1991.
Ascetophantes is a monotypic genus of Asian dwarf spiders containing the single species, Ascetophantes asceticus. It was first described by A. V. Tanasevitch & Michael I. Saaristo in 2006, and has only been found in Nepal.
Claviphantes is a genus of Asian dwarf spiders that was first described by A. V. Tanasevitch & Michael I. Saaristo in 2006. As of May 2019 it contains only two species, both found in Nepal: C. bifurcatoides and C. bifurcatus.
Himalaphantes is a genus of Asian dwarf spiders that was first described by A. V. Tanasevitch in 1992.
Indophantes is a genus of Asian dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 2003.
Metaleptyphantes is a genus of dwarf spiders that was first described by G. H. Locket in 1968.
Microbathyphantes is a genus of dwarf spiders that was first described by P. J. van Helsdingen in 1985.
Mughiphantes is a genus of dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 1999.
Nasoona is a genus of dwarf spiders that was first described by G. H. Locket in 1982.
Oedothorax is a genus of dwarf spiders that was first described by A. Förster & Philipp Bertkau in 1883.
Theoa is a genus of sheet weavers that was first described by Michael I. Saaristo in 1995.
