Ameletidae

Ameletus lineatus. 1985. Sancy Run, R Hall (1985).
Ameletus ludens. 1985. Sancy Run, R Hall (1985).

Baetidae

Anafroptilum minor group sp. 1. 07/31/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
Baetis flavistriga. 09/22/2016. Flat Run, 39.2203, -82.2708, M Gray.
Baetis intercalaris. 07/31/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
Heterocloeon (Jubilatum) amplum. 1998. Flatlick Run, as Acentrella ampla, Purdue Entomol. Res. Ctr.
Neocloeon sp. 07/31/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
Labiobaetis propinquus. 07/13/2017. Elk Fork, 39.2467, -82.4602, C McKnight.
Paracloeodes minutus. 09/21/1992. Salt Cr., 39.2853, -82.7442, MJ Bolton.
Plauditus dubius. 07/13/2017. Elk Fork, 39.2467, -82.4601, C McKnight.
Procloeon viridoculare. 09/22/2016. Flat Run. 39.2203, -82.2706, M Gray.

Ephemerelladae

Ephemerella dorothea. 1985. Sandy Run, Hall (1985)

Ephemeridae

Ephemera simulans. 1998. Middle Fk. Salt Cr., Ohio Biol. Survey.
Ephemera varia. 1998. Vinton Co., Ohio Biol. Survey. Hexagenia limbata. 08/04/2016. Onion Cr., 39.2597, -82.2681, M Gray.

Heptageniidae

Stenacron interpunctatum. 1998. Randolph & McCafferty (1998).
Stenonema exigiuum*. 09/01/2016. Raccoon Cr., 39.0478, -82.3764, M Gray.
Stenonema femoratum. 07/13/2017. Elk Fork, 39.2467, -82.4602, C McKnight.
Stenonema pulchellum*. 08/24/2016. Elk Fork, 39.2167, -82.4049, M Gray.
Stenonema vicarium*. 07/316/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
* These species are listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 09/01/2016. Raccoon Cr., 39.0478, -82.3764, M Gray.

Leptophlebidae

Paraleptophlebia debilis. 1998. Flatlick Run. OEPA.