Mayflies of the United States
Mayflies of Calhoun County, Illinois
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Ephemeridae
No Common Name -- (Hexagenia limbata) No Common Name -- (Pentagenia vittigera)
Heptageniidae
No Common Name -- (Leucrocuta maculipennis) No Common Name -- (Stenonema mexicanum integrum)
Potamanthidae
No Common Name -- (Anthopotamus myops) No Common Name -- (Anthopotamus verticis)
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