Baetidae

Acerpenna pygmaea. 08/15/2013. E.Fk. Little Miami R., 39.240729, -83.79614, E Moore.
Baetis flavistriga. 07/27/2018. Trib. Cowan Cr., 39.38591, -83.88057, C McKnight.
Baetis intercalaris. 07/27/2018. Trib. Cowan Cr., 39.38591, -83.88057, C McKnight.
Neocloeon sp. 07/28/2011. Buck Run, 39.5456, -83.9586, A Dripps.
Procloeon viridoculare. 08/15/2013. E.Fk. Little Miami R., 39.225, -83.8258, E Moore.

Heptageniidae

Leucrocuta aphrodite. 1998. Clinton Co., Lake Co., Purdue Entomol. Res. Ctr.
Leucrocuta hebe. 1998. Todd Fork. OEPA.
Stenacron interpunctatum. 1998. Todd Fork., Ohio Biol. Survey.
Stenonema modestum*. 1998. Todd Fork., Ohio Biol. Survey.
Stenonema femoratum. 1956. Lytle Cr., Gaufin & Tarzewell (1956).

*This species listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 08/31/2011. Anderson Fork, 39.554316, -83.86501, A Dripps.