Eidmannella pallida

(Emerton, 1875)

Pallid cave spider

Eidmannella pallida is a scaffold-web in the Nesticidae with distribution in North America and established across multiple global regions. The has been to Pacific Islands, the Galápagos Islands, Macaronesia, Spain, Japan, and Italy, where it demonstrates high invasiveness potential. It readily establishes permanent populations in anthropogenic including vineyards, fields, and olive groves, and shows particular tendency to exploit vulnerable subterranean such as caves.

Eidmannella pallida by Marshal Hedin. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Eidmannella pallida: //ˌaɪd.məˈnɛl.lə ˈpæl.ɪ.də//

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Identification

Diagnostic morphological characters distinguish E. pallida from and other nesticids, though specific identification features require examination of detailed illustrations based on stereomicroscope and SEM imaging. The exhibits with distinct diagnostic characters in both males and females.

Images

Habitat

Vineyards, fields, olive groves, and subterranean environments including caves; shows strong association with crop-dominated landscapes and anthropogenic in invaded ranges.

Distribution

to North America; established in Pacific Islands, Galápagos Islands, Macaronesia, Spain, Japan, and Italy (North and South). Multiple new non-native localities recorded in recent years indicate ongoing range expansion.

Behavior

Exhibits high invasiveness potential with demonstrated ability to establish permanent in disturbed ; shows tendency to exploit vulnerable , particularly subterranean environments.

Ecological Role

Potential negative impacts on fauna in invaded areas, especially in cave where it may compete with or upon .

Human Relevance

Recognized as an of concern in agricultural and contexts; presence in vineyards and fields suggests potential interaction with agricultural systems, though specific economic impacts not documented.

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