Orchestina

Simon, 1882

goblin spiders

Orchestina is a -rich of tiny goblin ( Oonopidae) containing over 180 extant species. Members measure 1.0–3.0 mm in body length and possess an enlarged fourth enabling jumping. The genus exhibits a nearly global distribution in the Northern Hemisphere south of 45°N, with highest diversity in Central and South America, Africa, and Asia. First described by Eugène Simon in 1882.

Orchestina by (c) Toby, some rights reserved (CC BY), uploaded by Toby. Used under a CC-BY license.

Pronunciation

How to pronounce Orchestina: /ɔɹˈkɛstɪnə/

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Identification

Distinguished from other Oonopidae by the enlarged fourth adapted for jumping. -level identification relies on male palpal ( enlargement, loop configuration, shape) and female endogyne structures ( shape, protrusions, epigaster markings). Some species exhibit distinctive -shaped patterns. is common; males of some species have clypeal protrusions.

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Habitat

Primarily forest , where they represent a group as evidenced by extensive collections through canopy fogging. Also found under bark, in leaf litter, grasses, suspended litter, and occasionally inside buildings. In China, occurs in tropical seasonal rainforest, monsoon forest, and limestone monsoon rainforest at elevations from 707 m to 3062 m. Some collected via pitfall trapping in high-elevation forests (2600 m).

Distribution

Nearly global distribution in the Northern Hemisphere south of 45°N. Highest diversity and abundance in Central to South America, Africa, and Asia. Present in North America, Europe, and Australia with fewer . In China, recorded from Yunnan Province (Xishuangbanna, Cangshan Mountain, Dali City), Xizang/Tibet Autonomous Region (Linzhi City, Motuo Co., Pome Co., Nang Co.), Hainan, and Jiangxi. China harbors more than 20 species, with Xishuangbanna, Yunnan containing at least eight species. Northernmost Chinese species is Orchestina zhiwui.

Behavior

Capable of jumping due to enlarged fourth . Considered a group in forest based on collection data.

Ecological Role

group of in forest .

Human Relevance

Occasionally found inside buildings. Subject of taxonomic research due to high .

Similar Taxa

Other Oonopidae generaOrchestina is distinguished from other goblin by the enlarged fourth adapted for jumping; most other Oonopidae lack this modification.

More Details

Taxonomic history

First described by Eugène Simon in 1882. As of October 2025, the contains more than 180 , making it one of the most speciose genera in Oonopidae. Recent taxonomic work in China has described numerous new species from Yunnan and Xizang.

Collection methods

Most -dwelling specimens collected through canopy fogging. Ground-dwelling and litter-dwelling collected via sifting forest leaf litter, pitfall trapping, beating bushes, and ground searching.