Onychiurus obesus Mills, 1934
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Hexapoda |
| Class | Collembola |
| Order | Poduromorpha |
| Family | Onychiuridae |
| Genus | Onychiurus |
| Species | Onychiurus obesus Mills, 1934 |
Description
Diagnostic characters
- Ecological class
- Troglobiont
- Realm
- Terrestrial
- Troglomorphy
- Troglomorphic
Distribution
Range
Known from six counties across four states across two karst regions.
Continent
North America
Country
United States
States and provinces
Iowa, Minnesota, Missouri, Wisconsin
Counties
- Iowa
- Clayton, Delaware, Dubuque, Jackson
- Wisconsin
- Pierce, Sauk
Karst regions
Driftless Area, Ozarks
Conservation and management
NatureServe
G3G4 Vulnerable to Apparently Secure
Global rank last reviewed 2002.
Subnational ranks
- Iowa
- SNR Unranked
- Minnesota
- SNR Unranked
- Missouri
- SNR Unranked
- Wisconsin
- SNR Unranked
State and federal status
Not listed under the U.S. Endangered Species Act.
Other resources
References
- Nicholas, G. 1960. Checklist of macroscopic troglobitic organisms of the United States. The American Midland Naturalist 64: 123–160. doi:10.2307/2422897
- 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
This account was last revised 28 August 2026.
How to cite this account
Onychiurus obesus Mills, 1934. Cave Biology Data Portal, account SP-0445. https://cavebiology.org/species/onychiurus-obesus/ (accessed 18 October 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.