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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Canyon (Contra Costa County, California, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		134
352
319		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		134
352
319		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		8
12
9		Families
Genera
Species		 
Taxom
 

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


List of families for Canyon (Contra Costa County)
3 Families width 2 Species
Baetidae Leach, 1815Mayflies2SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae0SpeciesTaxom
Siphlonuridae Banks, 1900Primitive Minnow Mayflies0SpeciesTaxom


Genera for Canyon (Contra Costa County)
4 Genera with 2 Species
Acerpenna Waltz & McCa..., 1987
0SpeciesTaxom
Baetis Leach, 19232SpeciesTaxom
Cinygmula McDunnough, 1933
0SpeciesTaxom
Siphlonurus Eaton, 1868
0SpeciesTaxom


Species list for Canyon (Contra Costa County)
2 Species
Baetis (Baetis) bicaudatus Dodds, 1923
Baetis (Baetis) tricaudatus Dodds, 1923Light blue dun

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