Ameletidae

Ameletus lineatus. 04/12/2017. Johnson's Cr., 41.2165, -81.7141, DH Dean.
Ameletus ludens. 04/12/2017. Johnson's Cr., 41.2165, -81.7141, DH Dean.

Baetidae

Acerpenna pygmaea. 08/20/2012. E.Br. Black R., 41.018564, -82.0943, A Dripps.
Baetis flavistriga. 09/08/2017. Wolf Cr., 41.092107, -81.73559, C McKnight.
Baetis brunneicolor. 04/12/2017. Johnson's Cr. 41.2165, -81.7141; 05/08/2018. Mirror Valley Cr., 41.2211, -81.7054, DH Dean.
Baetis intercalaris.
08/09/2017. Wolf Cr., 41.092107, -81.73559, C McKnight.
Diphetor hageni. 04/12/2017-2018. Johnson's Cr., 41.2165, -81.7141. DH Dean.
Neocloeon sp. 07/06/2016. Trib. E.Br. Rocky R., 41.207789, -81.71401, S Macy.
Labiobaetis propinquus. 07/28/2015. Chippewa Cr., 41.099, -81.92, MJ Bolton.
Procloeon viridoculare. 08/08/2017. Wolf Cr., 41.0881, -81.6875, E Moore.

Caenidae

Caenis amica. 1998. Medina Co. (E. Fk. E. Branch Black R.), Ohio Biol. Survey.04/12/2017, Johnsons Cr., 41.2165, -81.7141,; DH Dean.
Caenis anceps. 04/12/2017, Johnsons Cr., 41.2165, -81.7141,; DH Dean.
Caenis latipennis. 1998. Coon Cr., E. Fk East Br. Black R. Ohio Biol. Survey; 08/08/2017. Johnson's Cr., 41.2165, -81.7141, 08/082017, 09/26/2017, 10/17/2017, 11/09/2017, 12/15/2017. DH Dean

Ephemerellidae

Dannella lita. 11/09/2017. Johnson's Cr., 41.2165, -81.7141, DH Dean
Eurylophella lutulenta. 04/12/2017, 03/05/2018. Johnson's Cr., 41.2165, -81.7141, DH Dean

Ephemeridae

Hexagena bilineata. 08/01/2012. E.Br. Black R., 41.08639, -82.0691, A Dripps.

Heptageniidae

Epeorus namatus. 04/12/2017, 03/05/2018. Johnson's Cr., 41.2165, -81.7141; 05/08/2018. Mirror Valley Cr., 41.2211, -81.7054, DH Dean.
Epeorus pleuralis. 05/08/2018. Mirror Valley Cr., 41.2211, -81.7054, DH Dean.
Leucrocuta hebe. given on map in Randolph and McCafferty (1998) as from Traver (1935), but not listed in Traver.
Leucrocuta maculipennis. 05/232017. Johnson's Cr., 41.2165, -81.7141, DH Dean.
Stenonema exigiuum*. 05/23/2017. Johnson's Cr., 41.2165, -81.7141, DH Dean.
05/08/2018. Mirror Valley Cr., 41.2211, -81.7054, DH Dean.
Stenonema femoratum. 1998. E. Black R., OEPA; 01/26/2018. Johnson's Cr., 41.2165, -81.7141, DH Dean.
Stenonema pulchellum*. 09/10/2014. N.Br. Rocky R., 41.1525, -81.8222, A Dripps.
Stenonema vicarium*. 09/26/2017. Johnson's Cr., 41.2165, -81.7141, DH Dean.
Stenacron interpunctatum. 1998. E. Br. Black R., trib. Black R., Purdue Entomol. Res. Ctr.
*These species listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 08/08/2017. Wolf Cr., 41.0881, -81.6875, E Moore.

Leptophlebidae

Choroterpes basalis. 1998. given on map in Randolph and McCafferty (1998) as from Traver (1935), but not listed in Traver.