Mayflies of the United States
Mayflies of Chester County, Pennsylvania
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Caenidae
No Common Name -- (Caenis amica) No Common Name -- (Caenis anceps) No Common Name -- (Caenis macafferti)
Ephemerellidae
No Common Name -- (Eurylophella aestiva) No Common Name -- (Eurylophella funeralis) No Common Name -- (Eurylophella verisimilis) No Common Name -- (Serratella serratoides)
Heptageniidae
No Common Name -- (Stenonema meririvulanum) No Common Name -- (Stenonema modestum) No Common Name -- (Stenonema pudicum)
Isonychiidae
No Common Name -- (Isonychia bicolor)
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