Baetidae

Acentrella parvula. 08/29/2011. Walnut Cr., 39.330906, -82.8444, J Freda; 09/06/2011. Kinnikinnick Cr. , 39.4292, -82.9389, E Moore.
Acentrella turbida. 08/29/2011. Walnut Cr., 39.2678, -82.8361, C McKnight.
Acerpenna pygmaea. 09/06/2011. Kinnikinnick Cr., 39.4292, -82.9389, E Moore.
Baetis flavistriga. 09/14/2011. Hickson Run, 39.172398, -82.83582, C McKnight.
Baetis intercalaris. 09/09/2016, Scioto R., 39.3469, -82.9836, MJ Bolton.
Diphetor hageni. 07/18/2018. Trib. Paint Cr., 39.26901, -83.38474, MJ Bolton.
Heterocloeon frivolium. 1992. Scioto R., down stream from Salt Cr., RM 50.9; OEPA; 10/08/1992. Scioto R. 0.36 mi Dws Salt Cr., 39.1872, -82.83, J DeShon.
Heterocloeon sp. 08/06/2006. Buckskin Cr., 39.2369, -83.2767, C McKnight.
Iswaeon anoka. 09/06/2011. Kinnikinnick Cr., 39.4202, -82.9389, E Moore.
Labiobaetis dardanus. 09/09/2016. Scioto R., 39.3469, -82.19836, MJ Bolton.
Labiobaetis frondalis. 08/31/2011. Deer Cr., 39.486762, -83.08381, C McKnight.
Neocloeon sp. 08/29/2011. Walnut Cr., 39.330906, -82.8444, J Freda.
Labiobaetis propinquus. 1998. Ralston Cr.); OEPA; 09/19/2011. Scioto R., 39.2122, -82.8647, J Freda.
Paracloeodes fleeki. 09/01/2011. Scioto R., 39.2519, -82.905, C McKnight.
Paracloeodes minutus. 09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.
Procloeon viridoculare. 09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.

Baetiscidae

Baetisca lacustris. 1985. Salt Cr., Hall (1985).

Ephemerellidae

Eurylophella funeralis. 1985. Ross Co., Hall (1985).
Teloganopsis deficiens. 08/31/2011. Deer Cr., 38.458162, -83.01911, C McKnight.

Ephemeridae

Ephemera simulans. 07/06/2006. Biers Run, 39.3778, -83.0676, J Freda.
Hexagenia rigida. 1941. Ross Co., Spieth (1941).
Hexagenia limbata. 1941. Ross Co., Spieth (1941).

Heptageniidae

Epeorus namatus. 1985. Ross Co., Hall (1985).
Heptagenia flavescens. 1992. Scioto R., OEPA; 1998. Ross Co. (1 mile NW Higby Bridge), Kondratieff (1998), Colorado State Univ. (adults).
Leucrocuta walshi. 1998. Ralston Cr., Ohio Biol. Survey.
Stenonema exigiuum*. 1985. Salt Cr., Hall (1985); 09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.
Stenonema femoratum. 1998. Ralston Cr., Colorado State Univ.; 09/14/2011, Hickson Run, 39.172398, -82.83582, C McKnight.
Stenonema mexicanum integrum*. 09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.
Stenonema pulchellum*. 09/19/2011. Scioto R., 39.1872, -82.83, C McKnight.
Stenonema terminatum*. 1985. Salt Cr., Hall (1985); 09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.
Stenonema vicarium*. 1985. Little Salt Cr., Salt Cr., Hall (1985); 09/14/2011. Hickson Run, 39.172398, -82.83582, C McKnight.
Stenacron candidum. 1985. Ross Co., Hall (1985).
* These species are listed as Maccaffertium by Mayfly Central.

Isonychiidae

Isonychia rufa. 1985. Salt Cr., Hall (1985).

Leptohyphidae

Tricorythodes allectus. 1985. Salt Cr., Hall (1985); 09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.

Leptophlebidae

Choroterpes basalis. 08/23/2011. Indian Cr., 39.279919, -82.95397, E Moore.
Habrophlebiodes americana. 1985. Ross Co., Hall (1985).
Leptophlebia nebulosa. 1985. alt Cr., Hall (1985).