Mayflies of the United States
Mayflies of Jefferson County, Colorado
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Baetidae
No Common Name -- (Baetis bicaudatus) No Common Name -- (Callibaetis ferrugineus hageni)
Ephemerellidae
No Common Name -- (Drunella grandis grandis) No Common Name -- (Ephemerella inermis)
Ephemeridae
No Common Name -- (Hexagenia limbata)
Heptageniidae
No Common Name -- (Epeorus longimanus)
Leptohyphidae
No Common Name -- (Tricorythodes minutus)
Leptophlebiidae
No Common Name -- (Paraleptophlebia memorialis)
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