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HYDATICUS MODESTUS SHARP VERSUS HYDATICUS STAGNALIS FAB. 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

For many years I have felt reasonably certain that the North American species of Hydaticus identified as stagnalis Fab. was not that species, and I have become entirely convinced on this point since I have had the opportunity of a critical examination of a series of the true stagnalis kindly sent to me by the late Dr. Alois Zimmerman of Munich.

Type
Articles
Information
The Canadian Entomologist , Volume 71 , Issue 6 , June 1939 , pp. 126 - 127
Copyright
Copyright © Entomological Society of Canada 1939

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