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.
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 treated as synonymous with that family.
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.
Midia is a monotypic genus of dwarf spiders containing the single species, Midia midas. It was first described by Michael I. Saaristo & J. Wunderlich in 1995.
Nusoncus is a monotypic genus of dwarf spiders containing the single species, Nusoncus nasutus. It was first described by J. Wunderlich in 2008. It is considered new to the fauna of Latvia since 2009.
Megalepthyphantes is a genus of dwarf spiders that was first described by J. Wunderlich in 1994.
Acorigone is a genus of dwarf spiders that was first described by P. A. V. Borges & J. Wunderlich in 2008. As of May 2019 it contains only two species: A. acoreensis and A. zebraneus.
Canariellanum is a genus of European dwarf spiders that was first described by J. Wunderlich in 1987.
Caviphantes is a genus of dwarf spiders that was first described by R. Oi in 1960.
Cornicephalus is a monotypic genus of East Asian dwarf spiders containing the single species, Cornicephalus jilinensis. It was first described by Michael I. Saaristo & J. Wunderlich in 1995, and has only been found in China.
Frontiphantes is a monotypic genus of European dwarf spiders containing the single species, Frontiphantes fulgurenotatus. It was first described by J. Wunderlich in 1987, and has only been found in Portugal.
Maculoncus is a genus of dwarf spiders that was first described by J. Wunderlich in 1995. As of May 2019 it contains only three species, found in Georgia, Greece, Israel, Russia, and Taiwan: M. obscurus, M. orientalis, and M. parvipalpus.
Minicia is a genus of dwarf spiders that was first described by Tamerlan Thorell in 1875.
Nasoonaria is a genus of Asian dwarf spiders that was first described by J. Wunderlich & D. X. Song in 1995.
Paragongylidiellum is a monotypic genus of Asian dwarf spiders containing the single species, Paragongylidiellum caliginosum. It was first described by J. Wunderlich in 1973, and has only been found in India and Nepal.
Parapelecopsis is a genus of dwarf spiders that was first described by J. Wunderlich in 1992.
Pseudocarorita is a monotypic genus of European sheet weavers containing the single species, Pseudocarorita thaleri. It was first described by J. Wunderlich in 1980, and has only been found in Central Europe.
Trichoncyboides is a monotypic genus of sheet weavers containing the single species, Trichoncyboides simoni. It was first described by J. Wunderlich in 2008, and is found in Europe, Germany, Switzerland, and Czechia.
Turinyphia is a genus of sheet weavers that was first described by P. J. van Helsdingen in 1982.
Walckenaerianus is a genus of sheet weavers that was first described by J. Wunderlich in 1995. As of June 2019, this spider genus contains only two species, found only in Asia, Siberia, and Bulgaria: W. aimakensis and W. esyunini.
