Baetidae

Acentrella turbida. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Baetis flavistriga. 09/03/2015. Trib. Carter Run, 40.514297, -80.6929, L Hughes.
Baetis intercalaris. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Baetis tricaudatis.09/20/2018. Keyhole Run, 40.483845, -80.78331, C McKnight.
Cloeon dipterum. 07/15/2010. Wills Cr., 40.386, -80.6651, M Gray.
Diphetor hageni. 09/03/2015. Trib Carter Run, 40.514297, -80.6929, L Hughes.
Neocloeon sp. 09/03/2015. Carter Run, 40.514283, -80.688, MJ Bolton.
Labiobaetis propinquus. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Procloeon viridoculare. 08/11/2011. Yellow Cr., 40.5379, 80.725, J Freda.

Ephemerellidae

Eurylophella verisimilis. 1985. Jefferson Co., Hall (1985).
Teloganopsis deficiens. 07/15/2010. Island Cr., 40.437096, -80.69794, J Freda.

Ephemeridae

Ephemera varia. 07/21/2010. Salem Cr., 40.370747, -80.79617, MJ Bolton.
Hexagenia atrocaudata. 08/04/2005. Long Run, 40.5003, -80.7963, J Freda.
Hexagena bilineata. 1998. Ohio R., Ohio Biol. Survey.

Heptageniidae

Heptagenia flavescens. i1985., Goose Run at Goose Run Rd., OEPA.
Stenacron interpunctatum. 1985. Jefferson Co., Hall (1985).
Stenonema femoratum. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Stenonema mediopunctatum*. 07/21/2010. Grassy Run, 40.39152, -81.81533, M Gray.
Stenonema pulchellum*. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Stenonema vicarium*. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
*These species are listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.

Leptophlebiidae

Habrophlebiodes americana.
07/11/2011. Trib. Mathews Run, 40.542594, -80.83693, MJ Bolton.