Allocapnia warreni Ross & Yamamoto, 1966
Arkansas snowfly
Taxonomy & Nomenclature
Conservation Status
Missing (NatureServe, 2025)
Last record: 1966 or before (Ross & Yamamoto, 1966)
Only known from the holotype, a male.
Distribution
along Clear Creek, Washington County, Arkansas, USA
Biology
Hypodigm
Only known from the holotype, a male.
Media
References
Original scientific description:
Ross, H. H. and Yamamoto, T. (1966). Two new sister species of the winter stonefly, genus Allocapnia (Plecoptera, Capniidae). Entomol. News (67?): 265-267.*
* The exact volume in which this species was described is somewhat of a mystery. I have examined five different references of the paper, of which four cite different volume no.'s: 27, 57, 67 and 77. How a single reference can be cited so differently in various publications is quite simply beyond me. Since "67" is quoted twice amongst the five instances of referring to this paper which I can find, I have chosen to go with this number, placing it in brackets with a question mark after the number to alert the reader to the fact that it is disputed.
Other references:
DeWalt, R. E., U. Neu-Becker and G. Stueber. (2012). Allocapnia warreni. Plecoptera Species File Online. Version 1.0/4.1. [Accessed 13 May 2012]. (http://Plecoptera.SpeciesFile.org).
NatureServe. (2025). Allocapnia warreni: Arkansas Snowfly. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available at: https://explorer.natureserve.org/ [Accessed 2 June 2025]
Poulton, B. C. and Stewart, K. W. (1991). The stoneflies of the Ozark and Ouachita Mountains (Plecoptera). Memoirs of the American Entomological Society 38: 1-116.
Stark, Bill P., Stewart, Kenneth W., Szczytko, Stanley W. and Baumann, Richard W. (1998). Common Names of Stoneflies (Plecoptera) from the United States and Canada. Ohio Biological Survey Notes 1: 1-18.
Stark, Bill P., Stewart, Kenneth W., Szczytko, Stanley W., Baumann, Richard W. and Kondratieff, B. C. (2012). Scientific and common names of Nearctic stoneflies (Plecoptera), with corrections and additions to the list. The Caddis Press, Miscellaneous Contribution No. 1. 20 pp.