Baetidae

Acerpenna pygmaea. 08/06/2019. Jennings Cr., 40.8597, -84.3422, C McKnight.
Baetis flavistriga. 08/06/2019. Jenning Cr., 40.8597, -84.3422, C McKnight.
Baetis intercalaris. 08/06/2019. Jenning Cr., 40.8597, -84.3422, C McKnight.
Labiobaetis frondalis. 06/30/2014. Kyle Prairie Ditch, 40.928168, -84.50861, S Macy.
Procloeon viridoculare. 08/06/2019. Jennings Cr., 40.8597, -84.3422, C McKnight.

Ephemeridae

Hexagenia limbata. 06/30/2014. Kyle Prairie Ditch, 40.728168, -84.50861, S Macy.

Heptageniidae

Stenonema femoratum. 08/01/2019. West Jenning Cr., 40.824171, -84.37869, C McKnight.
Stenonema mexicanum integrum*. 09/16/2015. St. Marys R., 40.7494, -84.7903, C McKnight.
Stenonema pulchellum*. 08/27/2014. Dog Cr., 40.9036, -84.4433, C McKnight.
Stenonema terminatum*. 08/06/2019. Jennings Cr., 40.8597, -84.3422, C McKnight.
* These species are listed as Maccaffertium by Mayfly Central.

Leptohyphidae

Tricorythodes allectus. 08/05/2019. Jennings Cr., 40.8306, -84.5342, C McKnight.