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Subterranean biodiversity of North America and around the globe

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Cave Biology Data Portal
Subterranean biodiversity of North America and around the globe
AnimaliaArthropodaChelicerataArachnidaAraneaeHalonoproctidaeCyclocosmia

Ravine Trapdoor Spider
Cyclocosmia truncata (Hentz, 1841)

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Chelicerata
Class Arachnida
Order Araneae
Family Halonoproctidae
Genus Cyclocosmia
Species Cyclocosmia truncata (Hentz, 1841)

Description

Diagnostic characters

Ecological class
Trogloxene
Realm
Terrestrial

Distribution

Range

Known from one county in Georgia.

Continent

North America

Country

United States

States and provinces

Georgia

Counties

Georgia
Walker

Conservation and management

NatureServe

GNR Unranked

G1G2G3G4G5

National ranks

United States
NNR

State and federal status

Not listed under the U.S. Endangered Species Act

References

  • Zigler, K.S., Niemiller, M.L., Stephen, C.D.R., Ayala, B.N., Milne, M.A., Gladstone, N.S., Engel, A.S., Jensen, J.B., Camp, C.D., Ozier, J.C. & Cressler, A. 2020. Biodiversity from caves and other subterranean habitats of Georgia, USA. Journal of Cave and Karst Studies 82: 125–167. doi:10.4311/2019LSC0125

How to cite this account

Cyclocosmia truncata (Hentz, 1841). Cave Biology Data Portal, account SP-2343. https://cavebiology.org/species/cyclocosmia-truncata/ (accessed 7 September 2026).

Data sources and funding are listed in the Acknowledgments.

Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.

Cave Biology Data Portal

Species accounts, distributions, and conservation status for the subterranean fauna of North America and around the globe, with resources for the cave and karst research community.

Text and data CC BY 4.0. Images all rights reserved unless stated.

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  • Contact
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