| Ostearius | |
|---|---|
 | |
| O. melanopygius, male | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Linyphiidae |
| Genus: | Ostearius Hull, 1911 [1] |
| Type species | |
| O. melanopygius (O. Pickard-Cambridge, 1880) | |
| Species | |
2, see text | |
| Synonyms [1] | |
| |
Ostearius is a genus of dwarf spiders that was first described by J. E. Hull in 1911. [3]
As of May 2019 [update] it contains two species: [1]
Linyphiidae is a family of very small spiders comprising 4694 described species in 623 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 Himalafurca from Nepal, formally described in April 2021 by Tanasevitch. Because of the difficulty in identifying such tiny spiders, there are regular changes in taxonomy as species are combined or divided.
Halorates is a genus of dwarf spiders that was first described by J. E. Hull in 1911.
Semljicola is a genus of sheet weavers that was first described by Embrik Strand in 1906.
Tibioploides is a genus of sheet weavers that was first described by K. Y. Eskov & Y. M. Marusik in 1991.
Agyneta is a genus of dwarf spiders that was first described by J. E. Hull in 1911.
Labullinyphia is a genus of Asian dwarf spiders containing the species Labullinyphia furcata and Labullinyphia tersa. It was first described by P. J. van Helsdingen in 1985,. The former species is found in China and the latter species in Sri Lanka.
Abiskoa is a monotypic genus of dwarf spiders containing the single species, Abiskoa abiskoensis. It was first described by Michael I. Saaristo & A. V. Tanasevitch in 2000, and has only been found in Europe, East Asia, and China.
Agnyphantes is a genus of dwarf spiders that was first described by J. E. Hull in 1932. As of May 2019 it contains only two species: A. arboreus and A. expunctus.
Aphileta is a genus of dwarf spiders that was first described by J. E. Hull in 1920. As of May 2019 it contains only three species in the United States and Canada: A. centrasiatica, A. microtarsa, and A. misera.
Caviphantes is a genus of dwarf spiders that was first described by R. Oi in 1960.
Diplocentria is a genus of dwarf spiders that was first described by J. E. Hull in 1911.
Entelecara is a genus of dwarf spiders that was first described by Eugène Louis Simon in 1884.
Hilaira is a genus of dwarf spiders that was first described by Eugène Louis Simon in 1884.
Lotusiphantes is a monotypic genus of East Asian dwarf spiders containing the single species, Lotusiphantes nanyuensis. It was first described by J. Chen & C. M. Yin in 2001, and has only been found in China.
Mecopisthes is a genus of dwarf spiders that was first described by Eugène Louis Simon in 1926.
Microbathyphantes is a genus of dwarf spiders that was first described by P. J. van Helsdingen in 1985.
Nasoonaria is a genus of Asian dwarf spiders that was first described by J. Wunderlich & D. X. Song in 1995.
Obscuriphantes is a genus of dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 2000.
Oryphantes is a genus of dwarf spiders that was first described by J. E. Hull in 1932.
Ostearius melanopygius is a species of sheetweb spider in the family Linyphiidae. It is found in South America, and within a range from the Canary Islands to Egypt and Turkey, South Africa, China, and New Zealand. It has been introduced into Europe, as well.