1.         Epiproct about as long as paraprocts, its apex acute, not emaginae; greatest witdth of                         prementum about 3/5 its length; paraprocts shorter than abdominal segments 9+10, each                         nearly straight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Boyeria grafiana

            Epiproct distinctly shorter than paraprocts, it apex distinctly emarginate; gratest width of                         promentum about 2/3 its length; paraprocts longer than abdominal segments 9+10,                         each with apex distinctly recurved. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Boyeria vinosa

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Dragonflies and Damselflies of Ohio

Key to Boyeria Nymph Species

Modified from Counts, 2002