Linyphiidae, spiders commonly known as sheet weavers, or money spiders is a family of very small spiders comprising 4706 described species in 620 genera worldwide. This makes Linyphiidae the second largest family of spiders after the Salticidae. The family is poorly understood due to their small body size and wide distribution; new genera and species are still being discovered throughout the world. The newest such genus is Himalafurca from Nepal, formally described in April 2021 by Tanasevitch. Since it is so difficult to identify such tiny spiders, there are regular changes in taxonomy as species are combined or divided.
Sisyrbe is a monotypic genus of North American spiders in the family Linyphiidae containing the single species, Sisyrbe rustica. It was first described by S. C. Bishop and C. R. Crosby in 1938, and has only been found in the United States.
Eridantes is a genus of North American dwarf spiders that was first described by C. R. Crosby & S. C. Bishop in 1933. As of May 2019 it contains only three species: E. diodontos, E. erigonoides, and E. utibilis.
Ceratinopsidis is a monotypic genus of North American dwarf spiders containing the single species, Ceratinopsidis formosa. It was first described by S. C. Bishop & C. R. Crosby in 1930, and has only been found in United States.
Cheniseo is a genus of North American dwarf spiders that was first described by S. C. Bishop & C. R. Crosby in 1935.
Coreorgonal is a genus of North American dwarf spiders that was first described by S. C. Bishop & C. R. Crosby in 1935. As of May 2019 it contains only three species in the United States and Canada: C. bicornis, C. monoceros, and C. petulcus.
Floricomus is a genus of North American dwarf spiders that was first described by C. R. Crosby & S. C. Bishop in 1925.
Gnathonargus is a monotypic genus of North American dwarf spiders containing the single species, Gnathonargus unicorn. It was first described by S. C. Bishop & C. R. Crosby in 1935, and has only been found in the United States.
Gnathonaroides is a monotypic genus of North American dwarf spiders containing the single species, Gnathonaroides pedalis. It was first described by S. C. Bishop & C. R. Crosby in 1938, and has only been found in Canada and the United States.
Goneatara is a genus of North American dwarf spiders that was first described by S. C. Bishop & C. R. Crosby in 1935.
Grammonota is a genus of dwarf spiders that was first described by James Henry Emerton in 1882.
Horcotes is a genus of dwarf spiders that was first described by C. R. Crosby & S. C. Bishop in 1933. As of May 2019 it contains only three species, found in Canada, Russia, and the United States: H. quadricristatus, H. strandi, and H. uncinatus.
Mythoplastoides is a genus of North American dwarf spiders that was first described by C. R. Crosby & S. C. Bishop in 1933.
Origanates is a monotypic genus of North American dwarf spiders containing the single species, Origanates rostratus. It was first described by C. R. Crosby & S. C. Bishop in 1933, and has only been found in the United States.
Pelecopsidis is a monotypic genus of North American dwarf spiders containing the single species, Pelecopsidis frontalis. It was first described by S. C. Bishop & C. R. Crosby in 1935, and has only been found in the United States.
Soucron is a monotypic genus of North American sheet weavers containing the single species, Soucron arenarium. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in Canada and the United States.
Souessa is a monotypic genus of North American sheet weavers containing the single species, Souessa spinifera. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in the United States.
Sougambus is a monotypic genus of North American sheet weavers containing the single species, Sougambus bostoniensis. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in Canada and the United States.
Souidas is a monotypic genus of North American sheet weavers containing the single species, Souidas tibialis. It was first described by American entomologists C. R. Crosby & S. C. Bishop in 1936, and has only been found in the United States.
Soulgas is a monotypic genus of North American sheet weavers containing the single species, Soulgas corticarius. It was first described by C. R. Crosby & S. C. Bishop in 1936, and has only been found in the United States.
