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Genus Stenacron

 
 
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Biosystematic Revision of the Genus Stenonema (Ephemeroptera: Heptageniidae)
By Bednarik AF and McCafferty WP
Ottawa : Dept. of Fisheries and Oceans Bulletin 201, 1979
Written when Maccaffertium was considered a subgenus of Stenonema. In the taxonomy used by BugGuide, Stenonema is now a monotypic genus with the other species covered under Maccaffertium.

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Contribution to the Systematics of Leucrocuta, Nixe, and Related Genera (Ephemeroptera: Heptageniidae)
By W. P. McCafferty
Transactions of the American Entomological Society Vol. 130, No. 1, pp. 1-9, 2004
full text with free JSTOR account

Two new genera of Nearctic Heptageniidae (Ephemeroptera)
By R.W. Flowers
Florida Entomologist Vol. 63, No. 3, 296-307, 1980
currently working URLs: https://journals.flvc.org/flaent/article/view/57493 and https://www.jstor.org/stable/3494626

Describes the division of Heptagenia into 3 genera: Heptagenia, Leucrocuta and Nixe

Heptageniidae of the World. Part II: Key to the genera
By J.M. Webb and W.P. McCafferty
Canadian Journal of Arthropod Identification, 7, 55 pp., 2008
Online version * Full text
Well-illustrated keys to larvae, adult males, and adult females by world's leading authorities. Diagnoses and world distribution maps provided for all the taxa treated as genera; several genus-group names newly synonymized (incl. Belovius... ah well... whatever :)

Mayfly fauna of New Mexico
By W.P. McCafferty, C.R. Lugo-Ortiz, and G.Z. Jacobi
Great Basin Naturalist 57(4): 283–314, 1997

Mayflies of the Southwest: new species, descriptions, and records (Ephemeroptera)
By Kilgore J.L. & Allen R.K.
Annals of the Entomological Society of America 66(2): 321–332, 1973

An annotated key to the nymphs of the families and subfamilies of mayflies (Ephemeroptera).
By G.F. Edmunds, Jr., R.K. Allen, and W.L. Peters
University of Utah Biological Series 13(1): 1–49, 1963

The mayflies of Europe (Ephemeroptera)
By Bauernfeind E., Soldán T.
Brill Academic Publishers. 781 pp., 2012

 
 
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