Clarus Cave Springtail
Pygmarrhopalites clarus (Christiansen, 1966)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Hexapoda |
| Class | Collembola |
| Order | Symphypleona |
| Family | Arrhopalitidae |
| Genus | Pygmarrhopalites |
| Species | Pygmarrhopalites clarus (Christiansen, 1966) |
Synonyms
- Arrhopalites clarus Christiansen, 1966 (prior combination, CoL)
Description
Diagnostic characters
- Ecological class
- Troglobiont
- Realm
- Terrestrial
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Rockhouse Cave, Barry Co., MO
Range
Known from three counties across seven states across five karst regions.
Continent
North America
Country
United States
States and provinces
Arkansas, Missouri, South Dakota, Virginia, Washington, Wisconsin, West Virginia
Counties
- Arkansas
- Newton
- Missouri
- Barry, Perry
Karst regions
Appalachians, Driftless Area, Interior Low Plateau, Other, Ozarks
Specimens
Type material
- Holotype
- 32631 · Museum of Comparative Zoology, Harvard
Collections holding material
| Institution | Lots |
|---|---|
| Museum of Comparative Zoology, Harvard | 1 |
| National Museum of Natural History, Smithsonian Institution | 1 |
| Natural History Museum, London | 1 |
3 cataloged lots in 3 collections. Compiled from GBIF and not an exhaustive census: many collections are not yet digitised, and holdings are added continually. Search GBIF for specimen records.
Download all 3 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
G4 Apparently Secure
Global rank last reviewed 21 August 2002.
Subnational ranks
- Arkansas
- S1S2 Critically Imperiled to Imperiled
- Missouri
- S3 Vulnerable
- South Dakota
- SNR Unranked
- Virginia
- S3 Vulnerable
- Washington
- SNR Unranked
- West Virginia
- S1 Critically Imperiled
- Wisconsin
- SNR Unranked
Ranks looked up 23 August 2026. Conservation status changes, and a rank here is as current as that date and no more.
State and federal status
Not listed under the U.S. Endangered Species Act.
Other resources
References
- McDaniel, V.R. & Smith, K.L. 1976. Cave fauna of Arkansas: selected invertebrate taxa. Journal of the Arkansas Academy of Science 30: 57–60. https://scholarworks.uark.edu/jaas/vol30/iss1/22. details
- Peck, S.B. & Lewis, J.J. 1978. Zoogeography and evolution of the subterranean invertebrate faunas of Illinois and southeastern Missouri. National Speleological Society Bulletin 40: 39–63.
- Webb, D.W., Taylor, S.J. & Krejca, J.K. 1993. The biological resources of Illinois caves and other subterranean environments. Illinois Natural History Survey, Champaign, Illinois, USA. 143 pp.
This account was last revised 28 August 2026. Conservation ranks were looked up 23 August 2026.
How to cite this account
Data sources and funding are listed in the Acknowledgments.
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