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Suborder Furcatergalia

Phylum Arthropoda - Arthropods
Subphylum Hexapoda - Hexapods
Class Insecta - Insects
Order Ephemeroptera - Mayflies
Suborder Furcatergalia

Family Leptophlebiidae - Pronggilled Mayflies
Genus Choroterpes
Genus Habrophlebia
Species vibrans - Habrophlebia vibrans
Genus Habrophlebiodes
Species americana - Habrophleboides americana
Genus Leptophlebia
Species cupida - Early Brown Spinner
Species intermedia - Leptophlebia intermedia
Species nebulosa - Leptophlebia nebulosa
Species pacifica - Leptophlebia pacifica
Genus Neoleptophlebia
Species assimilis - Neoleptophlebia assimilis
Species heteronea - Neoleptophlebia heteronea
Species memorialis - Neoleptophlebia memorialis
Species mollis - Neoleptophlebia mollis
Genus Paraleptophlebia
Species aquilina - Paraleptophlebia aquilina
Species bicornuta - Paraleptophlebia bicornuta
Species debilis - Paraleptophlebia debilis
Species gregalis - Paraleptophlebia gregalis
Species guttata - Paraleptophlebia guttata
Species helena - Paraleptophlebia helena
Species praepedita - Paraleptophlebia praepedita
Species strigula - Paraleptophlebia strigula
Species vaciva - Paraleptophlebia vaciva
Genus Thraulodes
Species speciosus - Thraulodes speciosus
Genus Traverella
Species albertana - Traverella albertana
Infraorder Pannota
Superfamily Ephemerelloidea
Family Ephemerellidae - Spiny Crawler Mayflies
Genus Attenella
Species attenuata - Attenella attenuata
Species delantala - Attenella delantala
Species margarita - Attenella margarita
Species soquele - Attenella soquele
Genus Caudatella
Species heterocaudata - Caudatella heterocaudata
Genus Drunella
Species coloradensis - Drunella coloradensis
Species cornuta - Drunella cornuta
Species cornutella - Drunella cornutella
Species doddsii - Drunella doddsii
Species flavilinea - Drunella flavilinea
Species grandis - Drunella grandis
Species lata - Drunella lata
Species pelosa - Drunella pelosa
Species spinifera - Drunella spinifera
Species tuberculata - Drunella tuberculata
Species walkeri - Drunella walkeri
Genus Ephemerella
Species aurivillii - Ephemerella aurivillii
Species dorothea - Ephemerella dorothea
Subspecies infrequens - Ephemerella dorothea infrequens
Subspecies dorothea - Ephemerella dorothea dorothea
Species excrucians - Ephemerella excrucians
Species invaria - Ephemerella invaria
Species maculata - Ephemerella maculata
Species subvaria - Ephemerella subvaria
Species tibialis - Ephemerella tibialis
Species verruca - Ephemerella verruca
Genus Eurylophella
Species aestiva - Eurylophella aestiva
Species bicolor - Eurylophella bicolor
Species funeralis - Eurylophella funeralis
Species lodi - Eurylophella lodi
Species prudentalis - Eurylophella prudentalis
Species temporalis - Eurylophella temporalis
Species verisimilis - Eurylophella verisimilis
Genus Matriella
Species teresa - Matriella teresa
Genus Penelomax
Species septentrionalis - Penelomax septentrionalis
Genus Serratella
Species levis - Serratella levis
Species micheneri - Serratella micheneri
Species serrata - Serratella serrata
Species serratoides - Serratella serratoides
Genus Teloganopsis
Species deficiens - Teloganopsis deficiens
Genus Timpanoga
Species hecuba - Timpanoga hecuba
Genus Tsalia
Species berneri - Tsalia berneri
Family Leptohyphidae - Little Stout Crawler Mayflies
Genus Leptohyphes
Genus Tricorythodes
Species explicatus - Tricorythodes explicatus
Family Neoephemeridae - Large Squaregill Mayfly
Genus Neoephemera - Large Squaregill Mayfly
Species youngi - Neoephemera youngi
Species purpurea - Neoephemera purpurea
Superfamily Caenoidea
Family Caenidae - Small Squaregilled Mayflies
Genus Brachycercus
Species harrisellus - Brachycercus harrisellus
Species nitidus - Brachycercus nitidus
Genus Caenis
Species hilaris - Caenis hilaris
Species latipennis - Caenis latipennis
Species tardata - Caenis tardata
Infraorder Scapphodonta
Family Potamanthidae - Hacklegilled Burrower Mayflies
Genus Anthopotamus
Species distinctus - Anthopotamus distinctus
Species myops - Anthopotamus myops
Species neglectus - Anthopotamus neglectus
Species verticis - Anthopotamus verticis
Superfamily Ephemeroidea
Family Ephemeridae - Common Burrower Mayflies
Genus Ephemera
Species blanda - Ephemera blanda
Species guttulata - Green Drake
Species simulans - Ephemera simulans
Species varia - Yellow Drake
Genus Hexagenia
Species atrocaudata - Hexagenia atrocaudata
Species bilineata - Hexagenia bilineata
Species limbata - Hexagenia limbata
Species orlando - Hexagenia orlando
Species rigida - Hexagenia rigida
Genus Litobrancha
Species recurvata - Litobrancha recurvata
Family Palingeniidae - Riverbed Burrower Mayflies
Genus Pentagenia
Species vittigera - Pentagenia vittigera
Family Polymitarcyidae - Pale Burrower Mayflies
Genus Ephoron - White Flies
Species album - White Fly
Species leukon - White Fly
Genus Tortopsis
Species puella - Tortopsis puella
Species primus - Tortopsis primus
Genus Tortopus
Family Behningiidae - Sand-burrowing Mayfly
Genus Dolania - American Sand-burrowing Mayfly
Species americana - Dolania americana