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THE NORTH AMERICAN SPECIES OF CINYGMA (EPHEMEROPTERA: HEPTAGENIIDAE)
Published online by Cambridge University Press: 31 May 2012
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.
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- Copyright © Entomological Society of Canada 1979
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