Baetidae

Acerpenna pygmaea. 09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight.
Procloeon viridoculare. 08/14/2018. Broken Sword Cr., 40.884857, -82.836005, C McKnight.
Baetis flavistriga. 09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight. Baetis intercalaris. 09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight. Neocloeon sp. 08/18/2016. S.Fk. Loss Cr., 40.850796, -82.79261, M Gray.

Heptageniidae

Stenonema femoratum. 07/30/2019. Sagamore Cr., 41.3514, -81.5923, E Moore.
Stenonema terminatum*. 09/19/2011. Sandusky R., 40.8383, -82.8556, MJ Bolton.
* This species is listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight.