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NEW NORTH AMERICAN CAENINAE WITH NOTES (EPHEMEROPTERA)*

Published online by Cambridge University Press:  31 May 2012

J. McDunnough
J. McDunnough
Affiliation:
Ottawa, Ont.
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Extract

Apart froni the small size of the insects the main obstacle in determining material in this genus has been the difficulty in identifying the species described by older authors. For some time been have been amassing material in the group and I believe that, with more or less topotypical specimens of every described species before me, I have tied down these names with a reasonable amount of surety.

Type
Articles
Information
The Canadian Entomologist , Volume 63 , Issue 11 , November 1931 , pp. 254 - 268
Copyright
Copyright © Entomological Society of Canada 1931

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References

* Contribution from the Division of Systematic Entomology, Entomological Branch. Dept. of Agric., Ottawa.