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


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		113
291
364		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		113
291
364		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		8
15
19		Families
Genera
Species		 
Taxom
 

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


List of families for Richmond (Contra Costa County)
3 Families width 3 Species
Baetidae Leach, 1815Mayflies1SpeciesTaxom
Ephemeridae Leach, 1817Burrowing mayflies1SpeciesTaxom
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae1SpeciesTaxom


Genera for Richmond (Contra Costa County)
4 Genera with 3 Species
Baetis Leach, 19211SpeciesTaxom
Callibaetis Eaton, 1881
Speckled Duns0SpeciesTaxom
Hexagenia Walsh, 1829Giant Mayflies1SpeciesTaxom
Maccaffertium Bednarik, 18621SpeciesTaxom


Species list for Richmond (Contra Costa County)
3 Species
Baetis (Baetis) flavistriga McDunnough, 1921Alpine draba
Hexagenia (Hexagenia) limbata Serville, 1829Burrowing mayfly
Maccaffertium pulchellum Walsh, 1862

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