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


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		168
520
552		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		168
520
552		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		10
23
29		Families
Genera
Species		 
Taxom
 

Superorder
 		Ephemeropteroidea
Rohdendorf, 1968
3
5
1		Families
Genera
Species		 
Taxom
 


List of families for Douglas (Effingham County Illinois)
3 Families width 1 Species
Siphlonuridae Banks, 1900Primitive Minnow Mayflies0SpeciesTaxom
Baetidae Leach, 1815Mayflies0SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae1SpeciesTaxom


Genera for Douglas (Effingham County Illinois)
5 Genera with 1 Species
Ameletus Eaton, 1885
0SpeciesTaxom
Cloeon Leach, 1815
0SpeciesTaxom
Heptagenia Walsh, 18851SpeciesTaxom
Rhithrogena Eaton, 1881
March Browns0SpeciesTaxom
Stenonema Traver, 1933
0SpeciesTaxom


Species list for Douglas (Effingham County Illinois)
1 Species
Heptagenia (Heptagenia) elegantula Eaton, 1885

Subnodes of Ephemeropteroidea with occurrences in Douglas (Effingham County Illinois)
OrderEphemeroptera
Hyatt & Arms, 1891
Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes, Mayflies Olives Etc, mayfly, Shadflies		3
5
1		Families
Genera
Species
Taxom