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33 small square-gilled mayflies species
Caenis youngi
Caenis latipennis
Caenis amica
Caenis anceps
Caenis candida
Caenis diminuta
Caenis hilaris
Caenis macafferti
Caenis punctata
Caenis tardata
Amercaenis ridens
Cercobrachys lilliei
Cercobrachys serpentis
Cercobrachys winnebago
Cercobrachys etowah
Sparbarus miccosukee
Sparbarus lacustris
Sparbarus maculatus
Sparbarus nasutus
Susperatus prudens
Cercobrachys cree
Brachycercus nitidus
Brachycercus ojibwe
Caenis bajaensis
Caenis horaria
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