Mayflies of the United States
Mayflies of Osage County, Missouri
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Baetiscidae
No Common Name -- (Baetisca lacustris)
Ephemerellidae
No Common Name -- (Attenella attenuata)
Heptageniidae
No Common Name -- (Stenonema femoratum) No Common Name -- (Stenonema mediopunctatum arwini)
Polymitarcyidae
No Common Name -- (Ephoron album)
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