The Nymphs of three Nemouridae Species (Plecoptera) from Oregon Temporary Headwater Streams

Kenneth W. Stewart; N. H. Anderson

doi:10.3157/0002-8320(2008)134[173:TNOTNS]2.0.CO;2

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Kenneth W. Stewart,¹ N. H. Anderson²

¹Department of Biological Sciences, University of North Texas, Denton, Texas 76203
²Emeritus, Department of Zoology, Oregon State University, Corvallis, Oregon 97331

Abstract

The nymphs of three nemourid stonefly species, Malenka bifurcata (Claassen), Ostrocerca dimicki (Frison) and Soyedina producta (Claassen), are described and illustrated from field correlated and reared specimens collected from Oregon summer-dry headwater streams from 1992-2007. Their characters affirm the nymphal diagnostic generic characters proposed by Stewart & Stark (2002). Variation in specific characters from the few described congeners is discussed; these traits may be useful in eventual construction of species-level keys.

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Kenneth W. Stewart and N. H. Anderson "The Nymphs of three Nemouridae Species (Plecoptera) from Oregon Temporary Headwater Streams," Transactions of the American Entomological Society 134(1), 173-183, (1 March 2008). https://doi.org/10.3157/0002-8320(2008)134[173:TNOTNS]2.0.CO;2

Published: 1 March 2008

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