Mayflies of the United States
Mayflies of Hampshire County, Massachusetts
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Caenidae
No Common Name -- (Caenis amica)
Heptageniidae
No Common Name -- (Stenonema ithaca) No Common Name -- (Stenonema modestum)
Metretopodidae
No Common Name -- (Siphloplecton basale)
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