Species list, Checklist of Order Ephemeroptera (Mayflies) for Walnut Creek (Contra Costa County, California, USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

Taxonomy & Distribution
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INSECTOIDGERENGDARK LIGHT

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Checklist for Order Ephemeroptera Hyatt & Arms, 1891 (Mayflies)
and region Walnut Creek (Contra Costa County, California, USA)

Class	Insecta Linnaeus, 1758 Insects, True insects	97 226 247	Families Genera Species	Taxom
Subclass	Pterygota Lang, 1888 Winged insects	96 224 245	Families Genera Species	Taxom
Infraclass	Palaeoptera Crampton, 1915 Ancient winged insects	8 16 25	Families Genera Species	Taxom
Superorder	Ephemeropteroidea Rohdendorf, 1968	4 7 7	Families Genera Species	Taxom
Order	Ephemeroptera Hyatt & Arms, 1891 Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes	4 7 7	Families Genera Species	Taxom

List of families for Walnut Creek (Contra Costa County)
4 Families width 7 Species

Siphlonuridae Banks, 1900	Primitive Minnow Mayflies	1	Species	Taxom
Baetidae Leach, 1815	Mayflies	4	Species	Taxom
Leptophlebiidae Banks, 1900	Leptophlebiids	0	Species	Taxom
Heptageniidae Needham, 1901	Flat-Bodied Up-Wings Heptageniidae	2	Species	Taxom

Genera for Walnut Creek (Contra Costa County)
7 Genera with 7 Species

Ameletus Eaton, 1934		1	Species	Taxom
Baetis Leach, 1923		2	Species	Taxom
Choroterpes Eaton, 1881		0	Species	Taxom
Diphetor Waltz & McCa..., 1884		1	Species	Taxom
Fallceon Waltz & McCa..., 1923	Blue-winged Olives	1	Species	Taxom
Heptagenia Walsh, 1885		1	Species	Taxom
Stenonema Traver, 1823		1	Species	Taxom

Species list for Walnut Creek (Contra Costa County)
7 Species

Ameletus celer McDunnough, 1934	Cape Thompson draba
Baetis (Baetis) flavistriga McDunnough, 1921	Alpine draba
Baetis (Baetis) tricaudatus Dodds, 1923	Light blue dun
Diphetor hageni Eaton, 1884	Hagen´s Small Minnow Mayfly
Fallceon quilleri Dodds, 1923
Heptagenia (Heptagenia) elegantula Eaton, 1885
Stenonema femoratum Say, 1823	Dark Cahill

Subnodes of Ephemeroptera with occurrences in Walnut Creek (Contra Costa County)

Suborder	Furcatergalia Kluge, 1993	1 1 0	Family Genus Species	Taxom
Suborder	Pisciforma McCafferty, 1991	3 6 7	Families Genera Species	Taxom

Ephemeroptera (Hyatt & Arms 1891)

Links, sources and further information

Ephemeroptera at ru.ac.za
Ephemeroptera at artfakta.se
Ephemeroptera at biodiversity.org.au
Ephemeroptera at dyntaxa.se
Ephemeroptera at gbif.org
Ephemeroptera at irmng.org
Ephemeroptera at itis.gov