Baetidae

Baetis flavistriga. 05/16/2013. Prime. Headwaters Little Jelloway Cr., 40.4645, -82.33771, C McKnight.
Baetis tricaudatis. 05/16/2013. Prim. Headwater Trib. Little Jelloway Cr., 40.46696, -82.34467, C McKnight.
Diphetor hageni. 05/16/2013. Prim. Headwaters Little Jelloway Cr., 40.4645, -82.33771, C McKnight.
Labiobaetis frondalis. 06/26/2018. Trib N.Br. Kokosing R., 40.51569, -82.58985, C McKnight.
Neocloeon sp.
08/30/2018. Trib. N.Br. Kokosing R., 40.50442, -82.58896, C McKnight.

Baetiscidae

Baetisca lacustris. 1985. Mohican R., Hall (1985).

Ephemerellidae

Ephemerella needhami. 1985. Mohican R., Hall (1995).
Eurylophella lutulenta. 05/16/2013. Primary Headwaters to Little Jelloway Cr., 40.465611, -82.34019, C McKnight.
Eurylophella temporalis. 1885. Mohican R., Hall (1985)

Heptageniidae

Stenacron interpunctatum. 1974. Mohican R., Lewis (1974).
Stenonema vicarium*. 05/16/2013. Primary Headwatefs to Little Jelloway Cr., 40.465611, -82.34019, C McKnight.
* This species is listed as Maccaffertium by Mayfly Central.

Polymitarcyidae

Ephoron leukon. 1984. Mohican R. at Greer, OEPA.