Baetidae

Acerpenna macdunnoughi. 07/02/2001. Negro Run, 40.881456, -83.14022; Spring Branch. 40.884457, -8315022, C McKnight.
Acerpenna pygmaea. 08/23/2001. Broken Sword Cr., 40.834257, -83.11241, C McKnight.
Baetis favistraga. 04/24/2009. Sandusky R., 40.964756, -83.206872, C McKnight.
Baetis intercaudatis. 08/22/2001. Rock Run, 40.821957, -83.22212, C McKnight.
Centropotilum sp., or Procloeon sp. 09/28/1990. Rock Run, 40.847256, -83.24052, C McKnight.
Diphetor hageni. 08/22/2001. Sycamore Cr., 40.982856, -83.19552, C McKnight.
Labiobaetis fondalis. 08/15/2001. Little Tymochtee Cr., 40.725414, -83.49572, C McKnight.<
em> Neocloeon sp. 08/21/2001. Sandusky R., 40.96756, -83.26872, C McKnight.
Procloeon viridoculare. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.

Caenidae

Caenis sp. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
Sparbarus sp. Sandusky R., 40.96756, -83.26872, C McKnight.

Ephemeridae

Ephemera simulans. 09/27/1990. Sandusky R., 40.844256, -83.72412, C McKnight.
Ephemera sp. 08/24/2001. Sandusky R., 40.8506, -83.2564, C McKnight.
Hexagenia limbata. 08/02/2005. Potato Run, 40.8471, -83.4621, C McKnight.

Heptageniidae

Leucrocuta hebe. 08/16/1979. Sandusky R., 40.926956, -83.24602. Ohio EPA Biologist.
Leucrocuta sp. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
Stenacron sp. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
Stenonema exiguum*. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
Stenonema femoratum. 08/02/2005. Potato Run, 40.8471, -83.4621, C McKnight.
Stemonema pulchellum*. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
Stenonema terminatum*. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
Stemonema vicarium*. 07/03/2001. Mile Run, 40.992656, -83.186719, C McKnight.
Nixe sp. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.
* These species are listed as Maccaffertium by Mayfly Central.

Isonychiidae

Isonychia sp. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.

Leptohyphidae

Trichorythodes sp. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.

Leptophlebiibae

Paraleptophlebia sp. 10/14/1999. Sandusky R., 40.988656, -83.203819. J Freda.
Small Leptophlebiidae. 08/24/2009. Sandusky R., 40.96756, -83.26872, C McKnight.