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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Sherman County (Oregon, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		172
711
1030		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		172
711
1030		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		11
28
59		Families
Genera
Species		 
Taxom
 

Superorder
 		Ephemeropteroidea
Rohdendorf, 1968
4
4
2		Families
Genera
Species		 
Taxom
 


List of families for Sherman County (Oregon)
4 Families width 2 Species
Caenidae Newman, 1853Small square-gill mayflies1SpeciesTaxom
Baetidae Leach, 1815Mayflies0SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae0SpeciesTaxom
Ephemeridae Leach, 1817Burrowing mayflies1SpeciesTaxom


Genera for Sherman County (Oregon)
4 Genera with 2 Species
Caenis Stephens, 19071SpeciesTaxom
Centroptilum Eaton, 1869
0SpeciesTaxom
Heptagenia Walsh, 1863
0SpeciesTaxom
Hexagenia Walsh, 1924Giant Mayflies1SpeciesTaxom


Species list for Sherman County (Oregon)
2 Species
Caenis (Caenis) latipennis Banks, 1907Graywinged sulphur dun
Hexagenia (Hexagenia) rigida McDunnough, 1924

Subnodes of Ephemeropteroidea with occurrences in Sherman County (Oregon)
OrderEphemeroptera
Hyatt & Arms, 1891
Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes, Mayflies Olives Etc, mayfly, Shadflies		4
4
2		Families
Genera
Species
Taxom