Ameletidae
Ameletus lineatus
Ameletus ludens
Ameletus shepherdi ?
Arthropleidae
Arthroplea bipunctata (listed by Randolph & McCafferty but not OEPA)
BaetidaeAcentrella nadineae
Caenis amica
Acentrella parvula
Acentrella rallatoma
Acentrella turbida
Acerpenna macdunnoughi
Acerpenna pygmaea
Anafroptilum album
Anafoptilum minor group sp. 1
Anafoptilum minor group sp. 2
Anafoptilum victoriae
Arthroplea bipunctata (listed by Randolph & McCafferty, but not by OEPA)
Baetis brunneicolor (listed by OEPA but not by Randolph & McCafferty)
Baetis flavistriga
Baetis intercalaris
Baetis rusticans (listed by Randolph & McCafferty but not by OEPA)
Baetis tricaudatus
Callibaetis ferrugineus ferrugineus
Callibaetis fluctuans
Centroptilum sp. (w/o hind wingpads)
Centroptilum sp. (w/ hind wingpads)
Cloeon dipterum
Diphetor hageni
Hetercloeon (Jubilatum) amplum
Hetercloeon (Jubilatum) sp. B
Hetercloeon (Jubilatum) sp D
Hetercloeon (Jubilatum) curiosum
Hetercloeon frivolum listed by Randolph & McCafferty but not by OEPA)
Iswaeon anoka
Labiobaetis frondalis
Labiobaetis dardanus
Labiobaetis longipalpus (Rare, listed by OEPA but not Randolph & McCafferty)
Labiobaetis propinquus
Paracloeodes fleeki (listed by OEPA but not by Randolph & McCafferty)
Neocloeon alamance
Paracloeodes minutus (listed by OEPA but not for Ohio by Randolph &
McCafferty
Plauditus cestus listed by OEPA but not by Randolph & McCafferty)
Plauditus dubius listed by OEPA but not by Randolph & McCafferty)
Plauditus gloveri(listed by OEPA but not by Randolph & McCafferty)
Plauditus punctiventris
Plauditus veteris (listed by OEPA but not by Randolph & McCafferty)
Plauditus virilis (listed by OEPA but not by Randolph & McCafferty)
Procloeon rivulare (listed by OEPA but not by Randolph & McCafferty)
Procloeon rubropictum (listed by Randolph & McCafferty but not by OEPA)
Procloeon sp. (w/ hindwing pads)
Procloeon sp. (w/o hindwing pads)
Procloeon viridoculare (listed by OEPA and Randolph, 2000 as Procloeon irrubrum)
Pseudocentroptiloides usa (listed by Randolph & McCafferty but not by OEPA)
Baetiscidae
Baetisca lacustris
Baetisca laurentina (listed by Randolph & McCafferty but not by OEPA)
Baetisca obesa (listed by Randolph & McCafferty but not by OEPA)
Caenidae
Caenis anceps
Caenis diminuta
Caenis hilaris
Caenis latipennis
Caenis punctata
Sparbarus lacustris
Sparbarus maculatus
Ephemerellidae
Dannella simplex (listed by OEPA, Randolph & McCafferty as Timpanoga simplex)
Dannella lita (not listed by OEPA, Randolph & McCafferty as Timpanoga lita)
Drunella cornutella (listed by Randolph & McCafferty, 1998, but not by OEPA)
Ephemerella dorothea
Ephemerella excrucians
Ephemerella invaria
Ephemerella neehami
Ephemerella subvaria (new record for Ohio, (identified by DH Dean, 2019)
Eurylophella bicolor (listed by Randolph & McCafferty, 1998, but not by OEPA)
Eurylophella enoensis (listed by Randolph & McCafferty, 1998, but not by OEPA)
Eurylophella funeralis (listed by Randolph & McCafferty, 1998, but not by OEPA)
Eurylophella lutulenta
Eurylophella macdunnoughi (listed by Randolph & McCafferty, 1998, but not by OEPA)
Eurylophella minimella (listed by Randolph & McCafferty, 1998, but not by OEPA)
Eurylophella temporalis
Eurylophella verisimilis (listed by Randolph & McCafferty, 1998, but not by OEPA)
Serratella frisoni
Serratella serrata
Teloganopsis deficiensEphemeridae
Ephemera blanta
Ephemera guttulata
Ephemera simulans
Ephemera varia
Hexagenia atrocaudata
Hexagenia bilineata
Hexagenia limbata
Hexagenia rigida
Litobrancha recurvata
Heptageniidae
Epeorus namatus
Epeorus pleuralis
Heptagenia elegantula (listed by OEPA but not by Randolph & McCafferty )
Heptagenia flavescens
Heptagenia marginalis
Heptagenia pulla (listed by Randolph & McCafferty but not by OEPA)
Leucrocuta aphrodite (listed by Randolph & McCafferty but not by OEPA)
Leucrocuta hebe
Leucrocuta maculipennis
Leucrocuta walshi
Macdunnoa perisimplex
Nixe inconspicua
Nixe lucidipennis (listed by Randolph & McCafferty but not by OEPA)
Nixe perfida
Nixe rusticalis
Raptoheptagenia cruentata (listed by Randolph & McCafferty but not by OEPA; misidentified as Anepeorus sp. by Beckett, 1977)
Rhithrogena manifesta listed by OEPA but not by Randolph & McCafferty)
Stenacron candidum
Stenacron carolina
Stenacron gildersleevei
Stenacron interpunctatum
Stenacron minnetonka
Stenonema exiguum * (all these Stenonema except Stenonema femoratum are still listed as Maccaffertium by Mayfly Central and Ohio EPA)
Stenonema femoratum
Stenonema ithaca *(listed by OEPA but not by Randolph & McCafferty)
Stenonema luteum *(listed by Randolph & McCafferty but not by OEPA)
Stenonema mediopunctatum *
Stenonema mexicanum integrum *
Stenonema modestum *
Stenonema pulchellum *
Stenonema terminatum terminatum *
Stenonema vicarium *
IsonychiidaeIsonychia bicolor
Isonychia rufaLeptohypidae
Tricorythodes allectus
LeptophlebiidaeChoroterpes basalis
Habrophleboides americana
Habrophlebia vibrans
Leptophlebia cupida
Leptophlebia johnsoni
Leptophlebia nebulosa
Neoleptophlebia adoptiva
Neoeptophlebia mollis
Paraleptophlebia debilis
Paraleptophlebia guttata
Paraleptophlebia moerens
Paraleptophlebia ontario
Paraleptophlebia praepedita
Paraleptophlebia strigulaPalingeniidae
Pentagenia robusta (recently reported to be extinct)
Pentagenia vittigera (not reported in Ohio, nearest is Wabash R., Indiana)Polymitarcyidae
Ephoron album
Ephoron leukonPotamanthidae
Anthopotamus distinctus
Anthopotamus neglectus (new species for Ohio) (DH Dean, 2021)
Anthopotamus myops
Anthopotamus verticis (new species for Ohio) (Bolton, et al., 2019)
Pseudironidae
Pseudiron centralis
SiphlonuridaeSiphlonurus typicus
* Based on molecular studies, the previous genus Maccaffertium has been returned to the subgenus level and all the species returned to Stenonema (Burian, 2019. Zembrzuski & Anderson, 2018. This change has not been accepted by Mayfly Central)
Checklist of Ohio Mayflies