Onychiurus reluctus Christiansen, 1961
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Hexapoda |
| Class | Collembola |
| Order | Poduromorpha |
| Family | Onychiuridae |
| Genus | Onychiurus |
| Species | Onychiurus reluctus Christiansen, 1961 |
Synonyms
- Onychiurus wilchi (subjective synonym, ITIS)
Description
Diagnostic characters
- Ecological class
- Troglobiont
- Realm
- Terrestrial
- Troglomorphy
- Troglomorphic
Distribution
Type locality
Hunter's Cave, Jackson Co. IA
Range
Known from seven counties across five states in the Appalachians karst region.
Continent
North America
Countries
Mexico, United States
States and provinces
Iowa, Illinois, Mexico, Tennessee, West Virginia
Counties
- Iowa
- Fayette, Jackson
- Illinois
- Monroe
- Mexico
- Ciudad De Mexico, IZTAPALAPA, LA MAGDALENA CONTRERAS
- Tennessee
- Stewart
Karst regions
Appalachians
Specimens
Collections holding material
| Institution | Lots |
|---|---|
| Facultad de Ciencias, Universidad Nacional Autonoma de Mexico | 6 |
| National Museum of Natural History, Smithsonian Institution | 1 |
| Natural History Museum, London | 1 |
| Tromso University Museum | 1 |
9 cataloged lots in 4 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 9 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.
Conservation and management
NatureServe
GNR Unranked
Global rank last reviewed na.
Subnational ranks
- Indiana
- S4 Apparently Secure
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
- Lewis, J.J. & Lewis, S.L. 2007. A biological reconnaissance of selected caves in the Highland Rim area of central Tennessee. Tennessee Chapter Cave Program, The Nature Conservancy, Nashville, Tennessee, USA. 42 pp.
- Lewis, J.J., Whitaker, J.O. & Krantz, G.W. 2010. A biological reconnaissance of the invertebrate fauna of twelve Tennessee caves with notes on the guanophilic mites of the genus Macrocheles. Journal of the Tennessee Academy of Science 85: 53–61.
- Peck, S.B. & Christiansen, K. 1990. Evolution and zoogeography of the invertebrate cave faunas of the Driftless Area of the upper Mississippi River Valley of Iowa, Minnesota, Wisconsin, and Illinois, U.S.A. Canadian Journal of Zoology 68: 73–88. doi:10.1139/z90-012
- Soto-Adames, F.N. & Taylor, S.J. 2013. New species and new records of springtails (Hexapoda: Collembola) from caves in the Salem Plateau of Illinois, USA. Journal of Cave and Karst Studies 75: 146–175. doi:10.4311/2011LSC0257
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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