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Superfamily Ephemerelloidea

Skunk Leptohyphid - Tricorythodes Drunella walkeri mayfly - Ephemerella Mayfly - Spiny Crawler Mayfly? - Eurylophella mayfly nymph - Timpanoga hecuba Ephemeroptera found on snowpack - Attenella Neoephemera youngi Mayfly - Ephemerella - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Furcatergalia
Infraorder Pannota
Superfamily Ephemerelloidea