Diet of Octogomphus specularis (Hagen in Selys, 1859) (Odonata: Gomphidae) nymphs in western Oregon, U.S.A. with incidental information on the diet of Cordulegaster dorsalis Hagen in Selys, 1858 (Odonata: Cordulegastridae) nymphs
Lauren Zatkos
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Ivan Arismendi
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William J. Gerth