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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Avon (Cache County, Utah, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		50
134
225		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		50
134
225		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		5
5
6		Families
Genera
Species		 
Taxom
 

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


List of families for Avon (Cache County)
2 Families width 1 Species
Caenidae Newman, 1853Small square-gill mayflies1SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae0SpeciesTaxom


Genera for Avon (Cache County)
2 Genera with 1 Species
Brachycercus Curtis, 18341SpeciesTaxom
Heptagenia Walsh, 1863
0SpeciesTaxom


Species list for Avon (Cache County)
1 Species
Brachycercus harrisella Curtis, 1834

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