Ephemeridae.

Ephemera simulans. 1969. Whetstone Cr., Dambach & Olive (1969); 08/28/2003. Whetstone Cr., 40.49896, -82.91146, MJ Bolton.
Hexagenia atrocaudata.
09/20/2000. Turkey Run, 40.4122, -82.8994, C McKnight.

Heptageniidae

Leucrocuta aphrodite. 1998. W. Br. Alum Cr.Ohio Biol. Survey.
Leucrocuta walshi. 1998. W. Br. Alum Cr., Indigo Cr., Ohio Biol. Survey.
Stenonema femoratum. 1998. W. Br. Alum Cr., Bunker Run, Indigo Cr., OEPA. Stenacron interpunctatum. 1998. W. Br. Alum Cr., OEPA.

Leptophlebidae

Choroterpes basalis. 1998. W. Br. Alum Cr., Colorado State Univ.