Ameletidae

Ameletus lineatus. 1985. Yoker Run, Hall (1985).

Baetidae

Acerpenna pygmaea. 09/09/2013. Dinner Fk., 39.71471, -81.59328, C McKnight.
Anafroptilum minor group sp. 1. 06/26/2014, N.Fk. Buffalo Cr., 39.841262, -81.504906, L Hughes; 8/29/2014. Buffalo Cr., 39.823781, -81.48717, L Hughes.
Baetis flavistriga. 08/29/2014. S.Fk. Seneca Fork, 39.8433, -81.3175, L Hughes.
Baetis intercalaris. 08/29/2014. Buffalo Cr., 39.823781, -81.48717, L Hughes.
Centroptilum alamance. 1985. Yoker Run, as Cloeon alamance. Hall (1985).
Cloeon dipterum. 07/08/2014. McBride Run, 39.74098, -81.32639, MJ Bolton.
Diphetor hageni. 08/29/2014. S. Fk. Seneca Fork, 39.8433, -81.3175, L Hughes.
Labiobaetis frondalis. 08/14/2014. Glady Run, 39.863874, -81.34462, L Hughes.
Neocloeon sp. 08/28/2018. Trib. Wolf Run, 39.8053, -81.5158, MJ Bolton.
Labiobaetis propinquus. 08/04/2014. S.Fk. Buffalo Cr., 39.812315, -81.46906, L Hughes.
Procloeon viridoculare. 08/29/2014. Buffalo Cr., 39.823781, -81.487171, L Hughes.
Pseudocloeon frondale. 1985. Yoker Run, Hall (1985).

Ephemerelladae

Eurylophella verisimilis. 1985. Yoker Run, Hall (1985).

Ephemeridae

Ephemera varia. 07/08/2014. McBride Run, 39.74098, -81.32639, MJ Bolton.
Hexagena bilineata. 08/14/2014. Beaver Cr., 39.9011, -81.3197, L Hughes.
Hexagenia limbata. 1985. Beaver Cr., Depue Run, Yoker Run, Hall (1985).

Heptageniidae

Nixe perfida. 1985. Yoker Run, Hall (1985).
Stenonema exigiuum*. 08/29/2014. S.Fk. Seneca Fork, 39.8433, -81.3175, L Hughes.
Stenonema femoratum. 08/28/2018. Trib. Wolf Run, 39.8053, -81.5158, MJ Bolton.
Stenonema pulchellum*. 08/20/2014. Buffalo Cr., 39.858815, -81.52295, L Hughes.
Stenonema vicarium*. 08.29.2014. Buffalo Cr., 39.823781, -81.73598, L Hughes.
* These species are listed as Maccaffertium by Mayfly Central.

Leptophlebidae

Habrophlebiodes americana. 07/08/2014. McBride Run, 39.74098, -81.32639, MJ Bolton.
Leptophlebia cupida. 1985. Yoker Run, Hall (1985).
Paraleptophlebia moerens. 1985. Noble Co., Hall (1985).
Paraleptophlebia strigula. 1985. Beaver Twp, Hall (1985).