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THE GENUS ILYBIUS ER. IN NORTH AMERICA (COLEOPTERA, DYTISCIDAE)

Published online by Cambridge University Press:  31 May 2012

J. B. Wallis
J. B. Wallis
Affiliation:
Winnipeg, Manitoba
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Extract

In spite of Mr. H. C. Fall's paper on Ilybius in the “Entomological News”, XXXVIII, 1927, much confusion as to the correct identification of species in that genus is still apparent. Nor is this to be wondered at. One species frequently superficially resembles another so closely that only careful discrimination will make certain what is in hand. Further, to my knowledge, no key by which females can be determined has been devised. This latter deficiency I have endeavoured to remedy.

Type
Articles
Information
The Canadian Entomologist , Volume 71 , Issue 9 , September 1939 , pp. 192 - 199
Copyright
Copyright © Entomological Society of Canada 1939

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