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17 hendricksons, sulphurs, and pale duns species
Ephemerella invaria
Ephemerella subvaria
Ephemerella dorothea
Ephemerella needhami
Ephemerella excrucians
Ephemerella notata
Ephemerella hispida
Ephemerella maculata
Ephemerella mucronata
Ephemerella tibialis
Ephemerella velmae
Ephemerella verruca
Ephemerella alleni
Ephemerella molita
Ephemerella apopsis
Ephemerella aurivillii
Ephemerella catawba
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