Cream Cahill
Stenonema femoratum (Say, 1823)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Hexapoda |
| Class | Insecta |
| Order | Ephemeroptera |
| Family | Heptageniidae |
| Genus | Stenonema |
| Species | Stenonema femoratum (Say, 1823) |
Description
Diagnostic characters
- Ecological class
- Stygoxene
- Realm
- Aquatic
Distribution
Range
Known from two counties across two states.
Continent
North America
Country
United States
States and provinces
Arkansas, Illinois
Counties
- Arkansas
- Izard
- Illinois
- Monroe
Conservation and management
NatureServe
G5 Secure
National ranks
- Canada
- N4 Apparently Secure
- United States
- N5 Secure
Subnational ranks
- New Brunswick
- SU Unrankable
- Ontario
- S4 Apparently Secure
- Quebec
- SNR Unranked
- Manitoba
- SU Unrankable
- Nova Scotia
- SU Unrankable
- Newfoundland and Labrador
- SU Unrankable
- Saskatchewan
- S4 Apparently Secure
- Northwest Territories
- SU Unrankable
- Illinois
- SNR Unranked
- Pennsylvania
- SNR Unranked
- Georgia
- SNR Unranked
- North Dakota
- SNR Unranked
- Kentucky
- SNR Unranked
- Missouri
- SNR Unranked
- Mississippi
- SNR Unranked
- Ohio
- SNR Unranked
- Tennessee
- SNR Unranked
- New York
- SNR Unranked
- Virginia
- SNR Unranked
- West Virginia
- SNR Unranked
- Iowa
- SNR Unranked
- Wisconsin
- S5 Secure
- Arkansas
- SNR Unranked
- Texas
- SNR Unranked
- Louisiana
- SNR Unranked
- Kansas
- SNR Unranked
- Michigan
- SNR Unranked
- Maine
- SNR Unranked
- Nebraska
- SNR Unranked
- Minnesota
- SNR Unranked
- Indiana
- S5 Secure
- New Hampshire
- SNR Unranked
- Oklahoma
- SNR Unranked
- South Carolina
- SNR Unranked
- North Carolina
- SNR Unranked
- Alabama
- SNR Unranked
- Connecticut
- SNR Unranked
State and federal status
Not listed under the U.S. Endangered Species Act
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.
- 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.
How to cite this account
Stenonema femoratum (Say, 1823). Cave Biology Data Portal, account SP-2959. https://cavebiology.org/species/stenonema-femoratum/ (accessed 7 September 2026).
Data sources and funding are listed in the Acknowledgments.
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