Ostearius

Ostearius
O. melanopygius
male O. melanopygius
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]
Haemathyphantes Caporiacco, 1949 [2]

Ostearius is a genus of dwarf spiders that was first described by J. E. Hull in 1911. ^[3]

Species

As of October 2025 ^[update] , this genus includes two species: ^[1]

• Ostearius melanopygius (O. Pickard-Cambridge, 1880) – South America. Introduced to Canada, St. Helena, Europe, Canary Is. to Turkey and Egypt, Ethiopia, Kenya, Tanzania, Namibia, South Africa, China, Malaysia, Indonesia, New Zealand (type species)
• Ostearius muticus J. C. Gao, Y. Q. Gao & Zhu, 1994 – China

See also

• List of Linyphiidae species (I–P)

References

1. "Gen. Ostearius Hull, 1911". World Spider Catalog. doi:10.24436/2 . Retrieved 2025-10-18.
2. Helsdingen, P. J. van (1977), "Fam. Linyphiidae", La faune terrestre de l'île de Sainte-Hélène IV, p. 182
3. Hull, J. E. (1911). "Papers on spiders". Transactions of the Natural History Society of Northumberland. 3 (3): 573–590.

External links

• Citizen science observations for Ostearius at iNaturalist