Baetidae

Acerpenna pygmaea. 08/07/2014. Little Darby Cr., 40.075, -83.5411, E Moore.
Baetis flavistriga. 07/16/2018. Trib. Mosquito Cr., 40.18939, -83.97834, C McKnight.
Baetis intercalaris. 08/10/2015. Little Darby Cr., 40.070231, -83.54776, C McKnight.
Baetis tricaudatis. 08/19/2014, Clover Run, 40.06336, -83.56412, E Moore.
Callibaetis ferrugineus ferrugineus. 1998. Cedar Bog, Ohio Biol. Survey.
Diphetor hageni. 1991. E. Br. Cedar Run, downstream Woodburn Rd., Ohio EPA; 2013. Mad R., 40.2295. -83.7628, DH Dean.
Heterocloeon (Jubilatum) amplum. 2019. Cedar Run, 40.0222, -83.8078, DH Dean.
Iswaeon anoka. 2011. Mad R., 40.0531, -83.8149, 3-X-2011, DH Dean.
Labiobaetis frondalis. 08/10/2015. Little Darby Cr., 40.070231, -83.53.54776, C McKnight.
Labiobaetis propinquus. 08/19/2014. Spring Fk., 40.044182, -83.54193, E Moore.
Neocloeon sp. 07/16/2018. Trib. Mosquito Cr., 40.18939, -83.97834, C McKnight.
Procloeon viridoculare. 08/19/2014. Spring Fk., 40.044182, -83.541933, E Moore.

Caenidae

Caenis amica. 1998. Cedar Bog. Ohio Biol. Survey.
Caenis latipennis. 1998. Cedar Bog. Ohio Biol. Survey.

Ephemerelladae

Dannella simplex. 1958. Mad R., Gaufin (1958),as Ephemerella simplex; 2011. Mad R., DH Dean.
Ephemerella subvaria. 2019 Champaign Co. (Cedar Run, Mad R.); DH Dean (2019).

Ephemeridae

Ephemera simulans. 1958. Mad R., Gaufin (1958)
.
Hexagenia limbata. 1958. Mad R., Gaufin (1958).
Litobrancha recurvata. 1998. E. Br. Cedar Run, downstream Woodburn Rd., Ohio EPA

Heptageniidae

Leucrocuta maculipennis. 1958. Mad R., as Heptagenia maculipennis, Gaufin (1958).
Maccaffertium terminatum. 1958.Mad R., Gaufin (1958).
Maccaffertium vicarium. 2012. Champaign Co. (Kings Cr.). DH Dean, 2019. Champaign Co. (Cedar Run), DH Dean.
Stenacron interpunctatum. 1958. Mad R., Gaufin (1958),; Nettles Cr., trib. Graves Cr., Ohio Biol. Survey.
Stenonema or Maccaffertium pulchellum*.08/12/2014. Pleasant Run, 40.2123, -83.4977, C McKnight.
Stenonema femoratum. 1958. Mad R., Gaufin (1958).
Stenonema or Maccaffertium terminatum*. 1958. Champaign Co. (Mad R.), Gaufin (1958).
Stenonema or Maccaffertium vicarium*. 08/21/2014. Pleasnt Run., 40.2143, -83.4977, C McKnight.

*there is currently a conflict in the naming of the Stenonema/Maccaffertium genus (see Checklist for more info.).