i

1.         3 ocelli in mature nymphs (Fig. 2.1.3.1); head and thorax usually with discernible dark            and light pattern (Fig. 2.1.3.2). . . . . . . . . . . . . . . . . . . . . . . . . . . Perlinella drymo

           2 ocelli; head and body pale, without distinct pattern on pronotum (Fig.2.1.3.3). . . . .            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. ephyre

 

[Home]; [Back to Nymph Families]; [Back to Perlidae Family]

Stoneflies of Ohio

Key to the Genera of Ohio Perlinella Nymphs

(From Kondratieff, Kirchner & Stewart, 1988)