1. Apicomesal spine on each foretibia short, less than or equal to 3X as long as wide; case with small pebbles in flange; lentic. Only reported in Portage Co. . . . . . . . . . Molanna uniophila
Apicomesal spine on each foretibia longer, greater or equal to 5X as long as wide; case without pebbles in flange; in springbrooks to medium-sized streams. . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Apex of spine-bearing projection on each foretibia extending well past tibio-tarsal junction; membranous are a a constriction of frontoclypeus capitate in mature larva; sandy- bottomed springs, springbrooks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Molanna blenda
Apex of spine-bearing projection on each foretibia extending to or just past tibiotarsal junction; membranous area at constricgtion of frontoclypeus quadrate in mature larvae. . . . . . . . . . . . 4
3. Head with dark banding along fontoclypeal and coronal sutures relatively wide; sandy-bottom streams usually wider than 5 m. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Molanna tryphena
Head with dark banding along frontoclypeal and coronal sutures narrow. . Molanna ulmerina
*Ohio EPS does not carry this genus to species.
Key to Species of Molanna* Nymphs