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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Valley County (Montana, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		111
292
368		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		111
292
368		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		11
21
30		Families
Genera
Species		 
Taxom
 

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


List of families for Valley County (Montana)
3 Families width 2 Species
Baetidae Leach, 1815Mayflies1SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae0SpeciesTaxom
Ephemeridae Leach, 1817Burrowing mayflies1SpeciesTaxom


Genera for Valley County (Montana)
4 Genera with 2 Species
Callibaetis Eaton, 1862Speckled Duns1SpeciesTaxom
Heptagenia Walsh, 1863
0SpeciesTaxom
Hexagenia Walsh, 1829Giant Mayflies1SpeciesTaxom
Rhithrogena Eaton, 1881
March Browns0SpeciesTaxom


Species list for Valley County (Montana)
2 Species
Callibaetis ferrugineus Walsh, 1862Red Speckled Dun
Hexagenia (Hexagenia) limbata Serville, 1829Burrowing mayfly

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