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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Imperial County (Eastern California, California, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		172
731
1083		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		171
729
1082		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		10
20
30		Families
Genera
Species		 
Taxom
 

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


List of families for Imperial County
4 Families width 3 Species
Leptophlebiidae Banks, 1900Leptophlebiids0SpeciesTaxom
Caenidae Newman, 1853Small square-gill mayflies1SpeciesTaxom
Ephemeridae Leach, 1817Burrowing mayflies1SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae1SpeciesTaxom


Genera for Imperial County
4 Genera with 3 Species
Adenophlebia Eaton, 1881
0SpeciesTaxom
Caenis Stephens, 19071SpeciesTaxom
Hexagenia Walsh, 1824Giant Mayflies1SpeciesTaxom
Stenonema Traver, 18231SpeciesTaxom


Species list for Imperial County
3 Species
Caenis (Caenis) latipennis Banks, 1907Graywinged sulphur dun
Hexagenia (Hexagenia) bilineata Say, 1824Emergent Mayfly
Stenonema femoratum Say, 1823Dark Cahill

Subnodes of Ephemeropteroidea with occurrences in Imperial County
OrderEphemeroptera
Hyatt & Arms, 1891
Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes, Mayflies Olives Etc, mayfly, Shadflies		4
4
3		Families
Genera
Species
Taxom