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A Revision of the Genus Ephemerella (Ephemeroptera: Ephemerellidae): I. The Subgenus Timpanaga

Published online by Cambridge University Press:  31 May 2012

Richard K. Allen
Affiliation:
University of Utah
George F. Edmunds Jr.
Affiliation:
University of Utah

Extract

1927–Needham – Ann. Ent. Soc. Amer., 20: 108.

1935–Traver – Biol. Mayflies, 565 (hecuba group).

1954–Edmunds and Traver – Proc. Ent. Soc. Wash., 56: 238.

1954– Demoulin – Bull. Ann. Soc. Ent. Belg., 90: 324.

The subgenus Timpanoga of the genus Ephemerella contains but a singIe species,Ephmerella hecuba Eaton. Needham (1927) derived the name for this subgenus from Mt. Timpanogos in north central Utah, after collecting specimens of Ephemerella hecuba in the nearby Provo River. He based the subgenus on the nymph which shows remarkable morphological distinction with its broad entire frontal shelf and its extremely flattened body.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1959

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References

Literature Cited

Eaton, A. E. 18831888. A revisionai monograph of recent Ephemeridae or mayflies. Trans. Linn. Soc. London, Sec. Ser. Zool., 3: 1352, 65 pls.CrossRefGoogle Scholar
McDunnough, J. 1935. Notes on western species of Ephemeroptera. Canad Ent. 67: 95104, 4 figs.CrossRefGoogle Scholar
Needham, J. G. 1927. The Rocky Mountain species of the mayfly genus Ephemerella. Ann. Ent. Soc. Amer., 20: 107117, 2 figs.CrossRefGoogle Scholar
Shepherd, D. 1929. Ephemerella hecuba Eaton; description of various stages. (Emphemerida, Baetidae). Canad. Ent., 61: 260264, 18 figs.CrossRefGoogle Scholar