Baetidae

Acerpenna pygmaea. 09/15/2015. Olentangy R., 39.971964, -83.02071, MJ Bolton.
Baetis flavistriga. 09/12/2018. Rush Run, 40.076164, -83.02741, C McKnight.
Baetis intercalaris. 09/12/2018. Rush Run. 40.076164, -83.02741, C McKnight.
Diphetor hageni. 06/24/2014. Smith Ditch, 39.8663, -83.2191, E Moore.
Iswaeon anoka. 09/06/2011. Alum Cr., 39.9889.-82.9372. C McKnight.
Labiobaetis frondalis. 09/04/2014. Hellbranch Run, 39.9217, -83.1775, C McKnight.
Labiobaetis dardanus. 09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.
Labiobaetis propinquus. 10/05/2015.Big Walnut Cr., 39.8678, -82.0317, L Hughes.
Paracloeodes fleeki. 09/01/2010. Walnut Cr., 39.8278, -82.8914, E Moore.
Plauditus dubius. 09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.
Procloeon viridoculare. 10/05/2015. Big Walnut Cr.., 39.8678, -82.9317, C McKnight.

Caenidae

Caenis punctata. 1947. Franklin Co., Columbus, 01/07/1947, TA Wooley, Purdue Entomol. Res. Ctr.
Caenis latipennis. 1998. Scioto R., Ohio Biol. Survey.

Ephemerellidae

Teloganopsis deficiens. 08/29/2014. Big Darby Cr., 39.8433, -83.1751, C McKnight.

Ephemeridae

Hexagenia rigida. 1941. Franklin Co.,Spieth (1941).
Hexagenia atrocaudata. 1941. Franklin Co.,Spieth (1941).
Hexagenia limbata. 1941. Franklin Co.,Spieth (1941)..

Heptageniidae

Nixe inconspicua. 09/05/1996. Franklin Co., Blacklick Cr., 39.8951, -82.8589, M Gray.
Stenacron interpunctatum. 1998. Big Darby Cr., Scioto R. Ohio Biol. Survey.
Stenonema exigiuum*. 09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.
Stenonema femoratum. 1998. Grant Run, Plum Run., OEPA.; 08/15/2018. Linworth Run. 40.093163, -83.04961, C McKnight.
Stenonema mediopunctatum*. 09/03/2014. Little Darby Cr., 39.893662, -83.21881, E Moore.
Stenonema mexicanum integrum*. 10/05/2015. Big Walnut Cr., 39.8678, -82.9317, S Macy.
Stenonema pulchellum*. 09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.
Stenonema terminatum*. 09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.
Stenonema vicarium*. 08/27/2017. Big Darby Cr., 39.9817, -83.2494, E Moore.
* These species are listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.