Baetidae
Acentrella parvula (McDunnough, 1932). 08/23/2011. Ashtabula R.,41.8489, -80.6889; 41.8516, -80.7272, MJ Bolton.
Acentrella turbida (McDunnough, 1924). 09/08/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Acerpenna pygmaea, (Hagen, 1861). 07/07/2015. Trib. Conneaut Cr., 41.885183, -80.61943, S Macy.
Baetis tricaudatis, Dodds (1923). 07/08/2015. Smokey Run, 41.9361, -80.5608, S Macy. Baetis flavistriga, McDunnough (1921). 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Baetis intercalaris, McDunnough (1921). 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Cloeon dipterum, Linnaeus, (1758). 08/07/2018. Trib. Shenango R., 41.54943, -80.52953, MJ Bolton.
Diphetor hageni, (Eaton, 1885). 08/07/2018. Trib. Shenango R., 41.56049, -80.52975, S Macy.
Labiobaetis frondalis (McDunnough, 2017). 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Labiobaetis propinquus (Walsh, 1863). 09/15/2015. Conneaut Cr., 41.901902, -80.65283, S Macy.
Neocloeon sp. Traver, 1935. 08/07/2018. Trib. Senango R., 41.54943, -8052953, MJ Bolton.
Plauditus, dubius (Walsh, 1862). 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy. Procloeon viridoculare (Berner, 1940). 09/17/2015. Conneaut Cr., 41-9039, -80.5294, S Macy.
Plauditus, virilis (McDunnough, 1923). 09/15/2015. Conneaut Cr., 41.9271, -80.6043, S Macy.Caenidae
Caenis amica. 1998. Conneaut Cr., Randolph & McCafferty (1998)
Caenis latipennis. 1998. Conneaut Cr., Randolph & McCafferty (1998).
Sparbarus lacustris (Needham, 1918). 09/15/2015. Conneaut Cr. 41.892737, -80.6678, S Macy.Ephemerellidae
Teloganopsis deficiens (Morgan, 1911). 09/17/2015. Conneaut Cr., 40.9039, -80.5294, S Macy.
Ephemeridae
Ephemera simulans Walker (1885). 09/12/2007. Trib. Crooked Cr., 41.642, -80.974, MJ Bolton.
Ephemera varia Eaton (1883). 06/30/2016. Trib. Conneaut Cr., 41.884903, -80.64219, S Macy.
Hexagena bilineata (Say, 1824). 08/02/2011. W.Br. Ashtabula R., 41.71414, -80.61453, MJ Bolton.
Hexagenia limbata (Serville, 1829). 08/12/2015. Indian Cr., 41.861309, -80.91656, S Macy.Heptageniidae
Stenacron interpunctatum. 1998. Indian Cr., Randolph & McCafferty (1998). Stenonema femoratum (Say, 1823). 08/07/2018. Trib. Shenango R., 41.56049, -80.52975, S Macy.
Stenonema exigiuum, Traver (1935)[listed as Maccaffertium exigiuum by Mayfly Central]. 09/15/2015. Conneaut Cr., 41.901902, -80.65283, S Macy.
Stenonema ithaca (Clemens & Leonard, 1924) [listed as Maccaffertium ithaca by Mayfly Central]. 08/02/2011. W.Br. Ashtabula R., 41.73924, -80.61969, MJ Bolton. Stenonema mediopunctatum (McDunnough, 1926)[listed as Maccaffertium mediopunctatum by Mayfly Central]. 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Stenonema modestum (Banks, 1910) [listed as Maccaffertium modestum by Mayfly Central]. 08/07/2007. Crooked Cr., 41.6543, -80.9238, MJ Bolton.
Stenonema pulchellum (Walsh, 1862). [listed as Maccaffertium puchellum by Mayfly Central]. 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Stenonema terminatum (Walsh, 1862) [listed as Maccaffertium terminatum by Mayfly Central]. 09/14/2015. Conneaut Cr., 41.9271, -80.6043, S Macy.
Stenonema vicarium (Walker, 1853). 09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Stenacron interpunctatum (Say, 1839). 1998. Ashtabula Co. (Indian Cr.), Randolph and McCafferty (1998).Leptohyphidae
Stenacron interpunctatum (Say, 1839).09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Leptophlebiidae
Choroterpes basalis (Burks, 1900). 08/05/2015. Turkey Cr., 41.9617, -80.5194. S Macy. Habrophlebiodes americana (Banks, 1903). 07/07/2015. Trib. Conneaut Cr.., 41.885183, -80.61943, S Macy.