Dwarf-spider
Guides
Grammonota maculata
dwarf spider
Grammonota maculata is a species of dwarf spider in the family Linyphiidae, first described by Nathan Banks in 1896. It belongs to a large family of small spiders commonly known as sheet-web weavers or money spiders. The species has been documented in two disjunct regions: the United States and Costa Rica. Like other linyphiids, it is likely associated with ground-level vegetation where it constructs flat sheet webs.
Grammonota pictilis
Grammonota pictilis is a dwarf spider species in the family Linyphiidae, first described by O. Pickard-Cambridge in 1875. It is one of many small-bodied sheet-web weavers in the genus Grammonota. The species has been recorded in both the United States and Canada, with specific province-level records from Alberta, Manitoba, and Ontario.
Grammonota texana
Grammonota texana is a dwarf spider in the family Linyphiidae, first described by Banks in 1899. It is known from the United States. Like other members of Linyphiidae, it is a small-bodied spider, though specific morphological details and natural history remain poorly documented in the literature.
Grammonota vittata
Grammonota vittata is a species of dwarf spider in the family Linyphiidae, first described by Barrows in 1919. The species is known from the United States, with additional records from several Canadian provinces including Alberta, British Columbia, and Manitoba. As a member of the sheet-web weaving spiders, it belongs to one of the most species-rich spider families. Very little is known about its specific biology or ecology.
Helophora
dwarf spiders
Helophora is a genus of dwarf spiders (family Linyphiidae) first described by Anton Menge in 1866. The genus contains five species with a disjunct distribution spanning North America, Europe, and East Asia. Members of this genus are small-bodied sheet-web weavers, characteristic of their family.
Hybauchenidium
dwarf spiders
Hybauchenidium is a genus of dwarf spiders in the family Linyphiidae, first described by Å. Holm in 1973. The genus contains four species distributed across high-latitude regions of the Northern Hemisphere, including boreal and arctic areas of North America, Europe, and Asia. Species in this genus are small-bodied spiders characteristic of the sheet-web building Linyphiidae.
Hybauchenidium gibbosum
Hybauchenidium gibbosum is a dwarf spider in the family Linyphiidae, originally described from Greenland by Sørensen in 1898. It has a broad Holarctic distribution spanning northern Eurasia and North America. As with most linyphiids, it is small-bodied and ground-dwelling, though detailed natural history remains poorly documented.
Hypselistes florens
Peatland Sheetweb Weaver
Hypselistes florens is a dwarf spider in the family Linyphiidae, commonly known as the Peatland Sheetweb Weaver. It is found across northern North America, with records from the United States and Canada. The species includes two subspecies: the nominate H. f. florens and H. f. bulbiceps. It is one of the more frequently observed sheetweb weavers, with substantial observational data available.
Idionella rugosa
dwarf spider
Idionella rugosa is a species of dwarf spider in the family Linyphiidae, first described by Crosby in 1905. It is a small sheet-web weaving spider found in North America. The species has been documented in the United States and Canada, with records from Alberta, Manitoba, and Ontario.
Islandiana flaveola
Unequal Whiskered Money Spider
Islandiana flaveola is a dwarf spider species in the family Linyphiidae, commonly known as sheet-web weavers or money spiders. First described by Banks in 1892, this species is distributed across the United States and Canada. Like other members of its genus, it constructs flat, sheet-like webs rather than the more familiar orb webs. The species is one of at least fifteen recognized species in the genus Islandiana.
Lepthyphantes
dwarf spiders
Lepthyphantes is a genus of dwarf spiders in the family Linyphiidae, containing 144 species and one subspecies as of October 2025. Species in this genus are found across Africa, Asia, Europe, and North America. The genus is notable for its members' adaptations to ephemeral and agricultural habitats, with documented life history strategies emphasizing high reproductive rates and dispersal capabilities.
Maro
Maro is a genus of dwarf spiders in the family Linyphiidae (sheet-web weavers), first described by Octavius Pickard-Cambridge in 1907. These small arachnids belong to the diverse group of linyphiid spiders, which are among the most species-rich spider families globally. The genus is known from limited records in northern Europe.
Megalepthyphantes
Megalepthyphantes is a genus of dwarf spiders (family Linyphiidae) established by J. Wunderlich in 1994. The genus comprises seventeen described species distributed across Africa, Europe, and Asia. Its type species is Megalepthyphantes nebulosus (Sundevall, 1830), originally described under a different genus. The genus shows a notable concentration of species in the Mediterranean region and Central Asia.
Mermessus bryantae
dwarf spider
Mermessus bryantae is a species of dwarf spider in the family Linyphiidae, first described by Ivie & Barrows in 1935. Originally described as Eperigone bryantae, this species has a broad native distribution across North America, Cuba, and Venezuela, and has been introduced to the Azores archipelago. As a member of the Linyphiidae, it belongs to one of the most species-rich spider families, commonly known as sheet-web weavers or money spiders. The genus Mermessus is part of an emerging research system for studying heritable bacterial symbionts in spiders.
Mermessus maculatus
dwarf spider
Mermessus maculatus is a dwarf spider in the family Linyphiidae, first described by Banks in 1892. The species exhibits a broad Nearctic distribution spanning from Canada to Guatemala, with additional records from the Commander Islands in Russia. As a member of the sheet-web weaving spiders, it belongs to a large family of small-bodied arachnids characterized by their distinctive web architecture.
Mermessus tridentatus
dwarf spider
Mermessus tridentatus is a species of dwarf spider in the family Linyphiidae, described by American arachnologist James Henry Emerton in 1882. It is a small sheet-web weaving spider with a documented distribution across the United States, Canada, and Puerto Rico. The species belongs to a genus that has become notable in recent research as a model system for studying heritable bacterial symbiont communities in spiders.
Mermessus trilobatus
Trilobate Dwarf Weaver
Mermessus trilobatus is a dwarf spider in the family Linyphiidae, native to North America and introduced to Europe and the Azores since the late 1970s. It has become the most invasive spider in Europe, expanding across multiple countries within fifty years. Unlike most invasive spiders in Europe, it occurs primarily in agricultural and semi-natural open habitats rather than buildings. First described by James Henry Emerton in 1882.
Mermessus undulatus
Dancing Dwarf Weaver
Mermessus undulatus is a species of dwarf spider in the family Linyphiidae, commonly known as the Dancing Dwarf Weaver. It was first described by Emerton in 1914 under the basionym Gongylidium undulatus. The species belongs to a genus that has been studied for its complex heritable symbiont communities, with some species hosting up to five different bacterial symbionts simultaneously.
Micrargus longitarsus
dwarf spider
Micrargus longitarsus is a dwarf spider in the family Linyphiidae, first described by James Henry Emerton in 1882. It is a small-bodied arachnid native to North America. The species has been documented in the United States and Canada, with specific records from Alberta and Ontario. Knowledge of its biology remains limited due to its small size and cryptic habits.
Microlinyphia
platform spider
Microlinyphia is a genus of dwarf spiders in the family Linyphiidae, first described by U. Gerhardt in 1928. The genus includes thirteen species and one subspecies as of October 2025. Members are commonly known as "platform spiders" due to their distinctive sheet-web architecture. Males possess a notable circular filament called an embolus on the pedipalp, a key diagnostic feature.
Microneta
Microneta is a genus of dwarf spiders (family Linyphiidae) established by Anton Menge in 1869. The genus contains eleven described species distributed across North America, Europe, South America, and parts of Asia. One species, Microneta viaria, has an exceptionally broad distribution spanning multiple continents. Most species have more restricted ranges, with several endemic to specific regions such as Sweden, Peru, or Mexico.
Mythoplastoides
dwarf spiders
Mythoplastoides is a genus of dwarf spiders in the family Linyphiidae, first described by C. R. Crosby and S. C. Bishop in 1933. The genus contains two species, both restricted to the United States: M. erectus and M. exiguus (the type species). As members of Linyphiidae, these spiders are small-bodied and build sheet webs. The genus is poorly documented in scientific literature, with minimal ecological or behavioral data available.
Mythoplastoides exiguus
Mythoplastoides exiguus is a dwarf spider species in the family Linyphiidae, first described by Nathan Banks in 1892. It is known from the United States. As a member of the sheet-web weaving spiders, it belongs to one of the most species-rich spider families globally, though specific information about this particular species remains limited.
Oedothorax trilobatus
Tricorn Dwarf Weaver
Oedothorax trilobatus is a species of dwarf spider in the family Linyphiidae, subfamily Erigoninae. It is a tiny spider, measuring approximately 2 mm in total body length. The species is notable for the distinctive cephalic swellings present in mature males, which give the species its name. It has been recorded from the United States, Canada, and Russia.
Oreoneta
A genus of dwarf spiders (family Linyphiidae) established in 1894, comprising approximately 30 species distributed across cold-temperate and Arctic regions of the Northern Hemisphere. Most species inhabit high-latitude or high-altitude environments. The genus was revised extensively by Saaristo & Marusik in 2004, resulting in numerous new species descriptions.
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dwarf spiders
Oreonetides is a genus of dwarf spiders in the family Linyphiidae, first described by Embrik Strand in 1901. The genus contains 17 described species distributed across the Northern Hemisphere, with records from North America, Europe, Russia, and East Asia. Species occupy diverse habitats ranging from boreal and alpine regions to temperate forests. The type species, Oreonetides vaginatus, has the broadest distribution, spanning from North America across Eurasia to Japan.
Oreophantes
Oreophantes is a monotypic genus of dwarf spiders (family Linyphiidae) containing the single species Oreophantes recurvatus. First described by K. Y. Eskov in 1984, this genus is known only from the United States and Canada. As a member of the sheet-web weavers, it represents a poorly documented component of North American spider diversity.
Origanates
Origanates is a monotypic genus of dwarf spiders in the family Linyphiidae. It contains a single species, Origanates rostratus, described by C. R. Crosby and S. C. Bishop in 1933. The genus is endemic to the United States and is known from limited observations.
Origanates rostratus
Origanates rostratus is a species of dwarf spider and the sole member of the monotypic genus Origanates. It was first described by James Henry Emerton in 1882 and later placed in its current genus by C. R. Crosby and S. C. Bishop in 1933. The species is endemic to the United States and belongs to the family Linyphiidae, commonly known as sheet-web weavers or money spiders.
Ostearius
Ostearius is a genus of dwarf spiders (family Linyphiidae) established by J. E. Hull in 1911. The genus contains two described species: O. melanopygius and O. muticus. These spiders have been recorded across a broad geographic range including Europe, Africa, Asia, and Oceania.
Pocadicnemis pumila
dwarf spider
Pocadicnemis pumila is a species of dwarf spider in the family Linyphiidae, first described by John Blackwall in 1841. It has a notably wide distribution spanning multiple continents, including North America, Europe, Turkey, the Caucasus, Russia (from European Russia to the Far East), Iran, and Japan. The species belongs to a family commonly known as sheet-web weavers or money spiders, though specific behavioral details for this species remain poorly documented.
Praestigia kulczynskii
Kulczynski's Dwarf Weaver
Praestigia kulczynskii is a dwarf spider in the family Linyphiidae, described by Eskov in 1979. The species has a transcontinental distribution spanning the Palearctic and Nearctic regions, with records from Russia, Japan, and Canada. As a member of the sheet-web weavers, it belongs to one of the most species-rich spider families, though specific ecological details for this species remain poorly documented.
Satilatlas marxi
Satilatlas marxi is a species of sheet-web weaving spider in the family Linyphiidae, described by Keyserling in 1886. It is a Holarctic species with documented occurrences in Alaska, Canada (Alberta, British Columbia, Manitoba), and South Siberia, Russia. The genus Satilatlas belongs to the diverse dwarf spider family, whose members construct horizontal sheet webs to capture prey. Very little is known about the specific biology of this species.
Scylaceus pallidus
dwarf spider
Scylaceus pallidus is a dwarf spider species in the family Linyphiidae, first described by Emerton in 1882 under the basionym Tmeticus pallidus. The species is distributed across the United States and Canada. As a member of the sheet-web weaving family Linyphiidae, it constructs flat horizontal webs for prey capture. The genus Scylaceus comprises small-bodied spiders, with this species representing one of the Nearctic representatives of this primarily Palearctic genus.
Sisicottus quoylei
Sisicottus quoylei is a species of dwarf spider described by Miller in 1999. It belongs to the family Linyphiidae, one of the largest families of spiders, commonly known as sheet-web weavers or money spiders. The species has been documented in North America.
Sisicus penifusifer
dwarf spider
Sisicus penifusifer is a species of dwarf spider in the family Linyphiidae, described by Bishop and Crosby in 1938. It belongs to a genus of small sheet-web weavers. The species has been documented in parts of the United States and Canada, with records from Alberta, British Columbia, and Manitoba.
Souessa spinifera
Souessa spinifera is a sheet web weaving spider and the sole member of the monotypic genus Souessa. First described by O. Pickard-Cambridge in 1874 and later placed in its current genus by Crosby & Bishop in 1936, this small arachnid belongs to the dwarf spider family Linyphiidae. It has been documented only from the United States, with records from multiple states.
Styloctetor purpurescens
Styloctetor purpurescens is a dwarf spider in the family Linyphiidae, first described by Keyserling in 1886. It is known from scattered records across the United States and Canada. The species belongs to a genus of small sheet-web weavers that are poorly studied in North America. Available documentation is limited to basic taxonomic and distributional data.
Tachygyna vancouverana
Tachygyna vancouverana is a dwarf spider in the family Linyphiidae, first described by Chamberlin and Ivie in 1939. The species is restricted to the Pacific Northwest region of North America. As a member of the sheet-web weaving family Linyphiidae, it constructs horizontal webs for prey capture. Like other members of its genus, it is small-bodied and ground-dwelling.
Tapinocyba cameroni
Tapinocyba cameroni is a species of sheet-web weaving spider in the family Linyphiidae, described in 2007 from Canada. The species is known from the prairie provinces of Alberta, Manitoba, and Saskatchewan. As a member of the dwarf spider family Linyphiidae, it is likely small-bodied with typical linyphiid morphology including reduced eyes and specialized setae on the tarsi.
Tapinocyba simplex
Simple Sheet-web Weaver
Tapinocyba simplex is a species of dwarf spider in the family Linyphiidae, commonly known as sheet-web weavers due to their characteristic web architecture. The species was described by James Henry Emerton in 1882. It is one of approximately 4,700 species in Linyphiidae, the second-largest spider family. Records indicate presence in the United States and Canada (Alberta, British Columbia, Manitoba).
Tenuiphantes zebra
Zebra Thin Sheetweaver
Tenuiphantes zebra is a species of sheetweb spider in the family Linyphiidae, a group known for constructing flat, horizontal webs. First described by Emerton in 1882, this small spider is found in North America, with records from the United States and Canada. As a member of the dwarf spider family Linyphiidae, it contributes to terrestrial arthropod diversity in its range, though detailed ecological studies remain limited.
Tmeticus ornatus
Decorated Red-and-black Money Spider
Tmeticus ornatus is a species of dwarf spider in the family Linyphiidae. It is found in the United States and Canada. The species was described by Emerton in 1914. As a member of the money spider family, it belongs to one of the most species-rich spider families globally.
Walckenaeria auranticeps
Walckenaeria auranticeps is a species of dwarf spider in the family Linyphiidae. It was described by Emerton in 1882. The species has a transcontinental distribution spanning northern Eurasia and North America, with records from Russia (South Siberia to Far East), Canada, and the United States. As a member of the sheet-web weaving spiders, it belongs to one of the most species-rich families of spiders.
Walckenaeria bifida
Walckenaeria bifida is a species of dwarf spider in the family Linyphiidae, described by Millidge in 1983. It belongs to a genus of small sheet-web weaving spiders distributed primarily in the Northern Hemisphere. The species epithet 'bifida' refers to a cleft or divided structure, likely describing a morphological feature of this spider. As with many Linyphiidae, it is a small-bodied spider that constructs sheet webs for prey capture.
Walckenaeria castanea
Walckenaeria castanea is a species of dwarf spider (family Linyphiidae) first described by Emerton in 1882. It is known from northern North America, with documented occurrences in the United States, Canada, and Greenland. As a member of the sheet-web weavers, it constructs horizontal webs to capture prey. The species is among the smaller spiders in its family, consistent with the 'dwarf spider' common name applied to linyphiids.
Walckenaeria columbia
dwarf spider
Walckenaeria columbia is a species of dwarf spider (subfamily Erigoninae) in the sheet-web weaving family Linyphiidae. Described by Millidge in 1983, this small arachnid is distributed across the United States and Canada. As a member of the Erigoninae, it likely constructs simple sheet webs or inhabits vegetation in ground-level habitats, though specific behavioral and ecological details remain poorly documented.
Walckenaeria communis
dwarf spider
Walckenaeria communis is a minute spider in the dwarf spider subfamily Erigoninae, measuring only about 2 mm in body length. The species is notable for the distinctive horn-like cephalic extension present in some males. It occurs across the United States and Canada, including Alaska and Alberta.
Walckenaeria digitata
dwarf spider
Walckenaeria digitata is a dwarf spider species in the family Linyphiidae, first described by Emerton in 1913. It is a small-bodied spider native to North America. As with other members of its family, it builds sheet webs. The species has been recorded in multiple Canadian provinces and across the United States.
Walckenaeria directa
dwarf spider
Walckenaeria directa is a species of dwarf spider in the family Linyphiidae, first described by O. Pickard-Cambridge in 1874. The species is known to occur in the United States and Canada. As a member of the sheet-web weavers, it belongs to one of the most diverse spider families, though specific ecological details for this species remain limited.