Mayflies of the United States
Mayflies of Beaverhead County, Montana
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Ameletidae
No Common Name -- (Ameletus shepherdi) No Common Name -- (Ameletus similior) No Common Name -- (Ameletus validus)
Caenidae
No Common Name -- (Caenis youngi)
Ephemerellidae
No Common Name -- (Attenella margarita) No Common Name -- (Ephemerella inermis) No Common Name -- (Ephemerella infrequens)
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