Sheet-web-weaver
Guides
Agnyphantes
Agnyphantes is a genus of dwarf spiders (family Linyphiidae) containing only two species: A. arboreus and A. expunctus. The genus was established by J. E. Hull in 1932. These spiders belong to the sheet-web weaving spiders, though specific details about their biology remain poorly documented.
Agnyphantes arboreus
Agnyphantes arboreus is a species of sheet-web weaver spider in the family Linyphiidae, first described by Emerton in 1915 under the name Bathyphantes arborea. It is a small spider native to western North America, with confirmed records from Alberta and British Columbia in Canada. Like other linyphiids, it constructs flat sheet webs to capture prey. The species epithet 'arboreus' suggests an association with trees or woody vegetation.
Agyneta angulata
Agyneta angulata is a sheet-web weaving spider in the family Linyphiidae, originally described by Emerton in 1882 under the name Bathyphantes angulatus. The species occurs across North America in the United States and Canada. As a member of the genus Agyneta, it belongs to a diverse group of small spiders commonly known as dwarf spiders or money spiders.
Anthrobia acuminata
Anthrobia acuminata is a species of sheet-web weaver spider in the family Linyphiidae, described by Emerton in 1913. This spider belongs to a large family of small-bodied arachnids commonly known as money spiders or sheet-web weavers, characterized by their distinctive flat, horizontal web architecture. The genus Anthrobia is part of the diverse North American linyphiid fauna. Specific ecological and behavioral details for this species remain poorly documented in available literature.
Baryphyma trifrons
Threefront Dwarf Weaver
Baryphyma trifrons is a dwarf spider (family Linyphiidae) with a Holarctic distribution spanning North America, Europe, the Caucasus, and across Russia to the Far East. The species was first described by O. Pickard-Cambridge in 1863. Two subspecies are recognized: B. t. trifrons and B. t. affine. It is one of approximately 4,600 species in Linyphiidae, the second-largest spider family.
Ceraticelus minutus
dwarf spider
Ceraticelus minutus is a species of dwarf spider in the family Linyphiidae, first described by James Henry Emerton in 1882. It is one of the smallest North American spiders, typically measuring only 1–2 mm in body length. The species is distributed across the United States and Canada, with records from provinces including Alberta, Manitoba, and Ontario. Like other linyphiids, it constructs small sheet webs close to the ground in vegetation.
Ceraticelus similis
dwarf spider
Ceraticelus similis is a species of dwarf spider in the family Linyphiidae, first described by Nathan Banks in 1892. It belongs to a diverse family of small spiders commonly known as sheet-web weavers or money spiders. The species is known from the United States and has been recorded in Alberta, Canada.
Ceratinella
dwarf spiders
Ceratinella is a genus of dwarf spiders in the family Linyphiidae, first described by James Henry Emerton in 1882. As of January 2026, the genus comprises 28 recognized species. Members are morphologically similar to the related genera Ceraticelus and Idionella, and taxonomic revisions affecting these groups are anticipated.
Ceratinopsis interpres
dwarf spider
Ceratinopsis interpres is a species of dwarf spider in the family Linyphiidae, first described by O. Pickard-Cambridge in 1874. It belongs to a genus of small sheet-web weavers. The species is known from limited observations in the United States.
Ceratinopsis nigripalpis
Ceratinopsis nigripalpis is a species of dwarf spider in the family Linyphiidae, first described by Emerton in 1882. It is one of numerous small-bodied spiders in the genus Ceratinopsis, which are characterized by their sheet-web building behavior. The species is known from the United States and Canada.
Collinsia plumosa
dwarf spider
Collinsia plumosa is a species of dwarf spider in the family Linyphiidae, first described by James Henry Emerton in 1882. It belongs to a diverse family of small spiders commonly known as sheet-web weavers or money spiders. The species has been recorded from multiple locations across the United States and Canada, though specific details about its biology remain limited in the available literature.
Coreorgonal bicornis
Coreorgonal bicornis is a species of sheet-web weaver spider in the family Linyphiidae, first described by Emerton in 1923. The genus Coreorgonal belongs to a large family of small spiders commonly known as money spiders or sheet-web weavers, which construct horizontal sheet webs often with a retreat at one edge. The specific epithet "bicornis" (Latin for "two-horned") likely refers to a morphological feature of this species, though detailed descriptions of its appearance remain limited in available literature.
Dicymbium nigrum
Black Dicymbium
Dicymbium nigrum is a dwarf spider in the family Linyphiidae, first described by John Blackwall in 1834. The species exhibits a wide Palearctic distribution spanning Europe, Turkey, the Caucasus, Russia, Central Asia, and China. Two subspecies are recognized: the nominate form D. n. nigrum and D. n. brevisetosum described by Locket in 1962. As a member of the sheet-web weavers, this species constructs characteristic horizontal webs for prey capture.
Diplocentria
dwarf spiders
Diplocentria is a genus of dwarf spiders in the family Linyphiidae, first described by J. E. Hull in 1911. The genus contains eight recognized species distributed across North America, Europe, and Asia. These small spiders are part of the sheet-web weaving guild within their family.
Diplocephalus subrostratus
dwarf spider
Diplocephalus subrostratus is a dwarf spider in the family Linyphiidae, first described by O. Pickard-Cambridge in 1873. The species exhibits a Holarctic distribution spanning North America, Greenland, and a broad range across Russia from Europe to the Far East, including Mongolia. Like other linyphiids, it is a small-bodied spider, though specific morphological and ecological details remain poorly documented in published literature.
Disembolus
dwarf spiders
Disembolus is a genus of dwarf spiders in the family Linyphiidae, first described in 1933. The genus contains 24 species distributed across North America, with most species occurring in the United States and some extending into Canada. As members of the sheet-web weaving family Linyphiidae, these spiders construct horizontal webs to capture prey. The type species, Disembolus stridulans, was described in the original genus description.
Dismodicus decemoculatus
Dismodicus decemoculatus is a sheet-web weaving spider in the family Linyphiidae, first described by Emerton in 1882. It is a small-bodied species with a circumboreal distribution across northern North America and Greenland. The specific epithet "decemoculatus" (Latin for "ten-eyed") refers to its eye arrangement. Like other linyphiids, it constructs horizontal sheet webs to capture prey.
Entelecara acuminata
dwarf spider
Entelecara acuminata is a dwarf spider species in the family Linyphiidae, a group commonly known as sheet-web weavers or money spiders. The species has a broad distribution spanning the Palearctic and Nearctic regions. It has been introduced to North America from its native Eurasian range.
Epiceraticelus mandyae
Epiceraticelus mandyae is a species of sheet-web weaving spider in the family Linyphiidae, described in 2019 from specimens collected in the United States. It belongs to a small genus of dwarf spiders characterized by distinctive genitalic morphology. The species was named in honor of arachnologist Mandy Howe. As a recently described species with limited published records, its biology and ecology remain poorly documented.
Erigone
dwarf spiders
Erigone is a genus of dwarf spiders in the family Linyphiidae, first described by Jean Victoire Audouin in 1826. Members of this genus are small-bodied spiders characterized by distinctive teeth bordering the carapace. They are carnivorous, preying on small insects. The genus is well-represented in temperate regions with numerous described species.
Erigone aletris
Miller Dwarf Weaver
Erigone aletris is a small spider species in the family Linyphiidae, commonly known as the Miller Dwarf Weaver. Native to North America, it has been introduced to parts of Europe including Britain and Italy. The species belongs to a large genus of sheet-web weaving spiders.
Erigone blaesa
Erigone blaesa is a dwarf spider species in the family Linyphiidae, first described by Crosby & Bishop in 1928. It is a small sheet-web spider distributed across northern North America. The species has been documented in multiple Canadian provinces and the United States.
Erigone capra
Erigone capra is a species of sheet-web weaving spider in the family Linyphiidae, first described by Eugène Simon in 1884. The species is known from North America and Eurasia, with records spanning from western Canada to Russia. As a member of the dwarf spider family, it constructs flat, horizontal webs close to the ground in vegetation. Taxonomic status varies between sources: Catalogue of Life treats it as accepted, while GBIF lists it as a synonym of Erigone dentigera.
Floricomus plumalis
Floricomus plumalis is a species of sheet-web weaving spider in the family Linyphiidae, first described by Crosby in 1905. It belongs to a genus of small spiders whose members construct flat, horizontal webs in vegetation. The species has been recorded from both Canada and the United States, though specific details about its biology remain poorly documented.
Frederickus coylei
Frederickus coylei is a species of dwarf spider in the family Linyphiidae, a large family of small spiders commonly known as sheet-web weavers or money spiders. The species was described in 2008 and is known from the United States and Canada. As a member of Linyphiidae, it likely constructs sheet webs to capture prey, though specific behavioral observations for this species are limited.
Gnathonargus unicorn
Unicorn spider
Gnathonargus unicorn is a small sheet-web weaving spider belonging to the family Linyphiidae. It is the sole species in its genus, which was established by Bishop & Crosby in 1935. The species was originally described by Banks in 1892 and is known from the United States. As with many linyphiid spiders, it is poorly studied and little is known of its natural history.
Gnathonaroides pedalis
Gnathonaroides pedalis is a dwarf spider and the sole species in the monotypic genus Gnathonaroides. First described by Emerton in 1923 and later placed in its current genus by Bishop & Crosby in 1938, this small linyphiid spider is known only from Canada and the United States. As a sheet-web weaver, it belongs to one of the most species-rich families of spiders.
Gonatium
Gonatium is a genus of dwarf spiders (family Linyphiidae) comprising twenty species as of 2025. The genus was established by Anton Menge in 1868 and exhibits a broad geographic distribution spanning Europe, Asia, North Africa, and North America. Species within this genus occupy diverse habitats from Mediterranean regions to boreal and montane environments.
Gonatium crassipalpum
dwarf spider
Gonatium crassipalpum is a dwarf spider in the family Linyphiidae, first described by Bryant in 1933. It is a small-bodied species distributed across the United States and Canada. The specific epithet 'crassipalpum' refers to thickened or stout pedipalps. Records indicate presence in multiple Canadian provinces including Alberta, British Columbia, and Manitoba.
Goneatara platyrhinus
Goneatara platyrhinus is a species of sheet-web weaving spider in the family Linyphiidae, first described by Crosby and Bishop in 1927. Like other members of this family, it constructs flat, horizontal sheet webs to capture prey. The species is known from the United States, though detailed ecological and behavioral data remain limited.
Grammonota capitata
Grammonota capitata is a species of dwarf spider in the family Linyphiidae, first described by Emerton in 1924. It belongs to a large family of small sheet-web weaving spiders commonly known as money spiders or sheet-web weavers. The species has been recorded from the United States and parts of Canada including Alberta, Manitoba, and Ontario.
Grammonota gentilis
dwarf spider
Grammonota gentilis is a species of dwarf spider in the family Linyphiidae, first described by Nathan Banks in 1898. It belongs to a large family of small sheet-web weaving spiders commonly known as money spiders or dwarf spiders. The species has been recorded from North America, with specific observations from Alberta, Canada and the United States.
Grammonota gigas
Grammonota gigas is a species of dwarf spider in the family Linyphiidae, first described by Nathan Banks in 1896. The specific epithet "gigas" (meaning "giant") suggests relatively large size compared to congeners, though this is not explicitly documented in available sources. Records indicate presence in the United States and multiple Canadian provinces.
Grammonota inornata
dwarf spider
Grammonota inornata is a species of dwarf spider in the family Linyphiidae, described by Emerton in 1882. It is distributed across the United States and Canada, with confirmed records from provinces including Alberta, Manitoba, and Ontario. As a sheet-web weaving spider, it belongs to one of the most species-rich families of spiders. The specific epithet 'inornata' refers to its unadorned or plain appearance.
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.
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.
Hilaira herniosa
Hilaira herniosa is a species of sheet-web weaving spider in the family Linyphiidae, one of the largest families of spiders. First described by Tamerlan Thorell in 1875 under the name Erigone herniosa, this small-bodied spider has a documented distribution spanning the Holarctic region, including northern Europe, Asia, and North America. The species inhabits moist, cool environments typical of many linyphiid spiders. Specific details regarding its biology and ecology remain limited in published literature.
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.
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.
Maso sundevalli
Maso sundevalli is a species of sheet-web weaving spider in the family Linyphiidae, first described by Westring in 1851. Originally placed in the genus Erigone, it was later transferred to Maso. The species has a broad distribution across the Northern Hemisphere, including Europe, Asia, and North America. Like other linyphiids, it constructs flat sheet webs with a retreat and captures small flying insects.
Mecynargus borealis
Mecynargus borealis is a sheet-web weaving spider in the family Linyphiidae, first described by Jackson in 1930. The species has a Holarctic distribution, occurring in northern Europe, Russia, and North America including Canada and Svalbard. As a linyphiid spider, it constructs flat sheet webs with a retreat for capturing small flying and crawling prey.
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 index
Mermessus index is a species of sheet-web weaving spider in the family Linyphiidae, first described by Emerton in 1914. It belongs to a genus of small spiders commonly known as dwarf spiders or money spiders. The species is native to North America and has been recorded in both the United States and Canada. Like other members of Linyphiidae, it constructs horizontal sheet webs to capture prey.
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 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.
Microlinyphia mandibulata mandibulata
Microlinyphia mandibulata mandibulata is a subspecies of sheet-web weaving spider in the family Linyphiidae. Members of this genus are commonly known as "platform spiders" for their flat, sheet-like webs built close to the ground. Males are distinguished by a circular filament called the embolus that extends from the pedipalp. This subspecies has been documented from the United States.