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THE NORTH AMERICAN SPECIES OF CINYGMA (EPHEMEROPTERA: HEPTAGENIIDAE)

Published online by Cambridge University Press:  31 May 2012

D.M. Lehmkuhl
D.M. Lehmkuhl
Affiliation:
Department of Biology, University of Saskatchewan, Saskatoon S7N 0W0
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Abstract

A key to species for adults and figures of the three North American Cinygma are presented. New distribution records are given; the range of C. lyriformis McDunnough is extended to Alaska and the genus in the Palearctic is discussed. Nymphs are undescribed except for C. integrum (Eaton). The life history of the latter is given for Oregon. Nymphs of all size classes are present throughout the year but adult emergence is restricted to mid May to mid July. Nymphs apparently are restricted to a submerged wood habitat.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 6 , June 1979 , pp. 675 - 680
Copyright
Copyright © Entomological Society of Canada 1979

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