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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Henderson County (Illinois, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		115
255
282		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		115
255
282		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		11
16
19		Families
Genera
Species		 
Taxom
 

Superorder
 		Ephemeropteroidea
Rohdendorf, 1968
6
7
8		Families
Genera
Species		 
Taxom
 


List of families for Henderson County (Illinois)
6 Families width 8 Species
Baetidae Leach, 1815Mayflies2SpeciesTaxom
Caenidae Newman, 1853Small square-gill mayflies1SpeciesTaxom
Ephemeridae Leach, 1817Burrowing mayflies2SpeciesTaxom
Oligoneuriidae (Ulmer, 1914)Brushleg Mayflies1SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae1SpeciesTaxom
Polymitarcyidae Banks, 1900Pale Burrower Mayflies1SpeciesTaxom


Genera for Henderson County (Illinois)
7 Genera with 8 Species
Baetis Leach, 19212SpeciesTaxom
Caenis Stephens, 19071SpeciesTaxom
Hexagenia Walsh, 1829Giant Mayflies1SpeciesTaxom
Isonychia Eaton, 1953Slate Drakes1SpeciesTaxom
Pentagenia Walsh, 18621SpeciesTaxom
Stenacron Jensen, 1839Light Cahills1SpeciesTaxom
Tortopsis Molineri, 19241SpeciesTaxom


Species list for Henderson County (Illinois)
8 Species
Baetis (Baetis) brunneicolor McDunnough, 1925Desert draba
Baetis (Baetis) flavistriga McDunnough, 1921Alpine draba
Caenis (Caenis) latipennis Banks, 1907Graywinged sulphur dun
Hexagenia (Hexagenia) limbata Serville, 1829Burrowing mayfly
Isonychia sayi (Burks, 1953)⇒ Isonychia winkleri Ulmer, 1939
Pentagenia vittigera Walsh, 1862
Stenacron interpunctatum Say, 1839Ginger quill
Tortopsis primus McDunnough, 1924

Subnodes of Ephemeropteroidea with occurrences in Henderson County (Illinois)
OrderEphemeroptera
Hyatt & Arms, 1891
Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes, Mayflies Olives Etc, mayfly, Shadflies		6
7
8		Families
Genera
Species
Taxom