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CONTRIBUTION TO THE BIOLOGY OF ONTARIO MAYFLIES WITH DESCRIPTION OF NEW SPECIES

Published online by Cambridge University Press:  31 May 2012

F. P. Ide
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Extract

Eurycaenis. Three male adults of this genus were taken swarming at the edge of a small lake at Daventry, Ont. early in the morning of September 5, 1929. These specimens have the characters set forth by Ulmer in his key to the genera of mayflies (Stettiner Entomologische Zeitung. 81. 1920). namely “Prosternum very broad, twice as broad as long, so that the coxae of the forelegs are widely separated: second antennal segment three times as long as the first segment.” In Caenis the second antennal segment is less than three times the length of the first segment and the prosternum is longer than wide.

Type
Articles
Information
The Canadian Entomologist , Volume 62 , Issue 10 , October 1930 , pp. 218 - 231
Copyright
Copyright © Entomological Society of Canada 1930

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References

* —In a recent communication Dr. McDonnough informs me that the so-called Cunygma bipunctata McD. falls in the genus Arthroplea Bgtssn, and expects to comments on this shortly.