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Family Ephemerellidae - Spiny Crawler Mayflies

Mayfly - Eurylophella - male 3-tailed mayfly (Imago) - Ephemerella - female Drunella doddsii Drunella grandis Female Pale Morning Dun, Livingston Montana, July 4, 2010 - Ephemerella - female Drunella coloradensis Mayfly - Ephemerella dorothea Mayfly - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Furcatergalia
Infraorder Pannota
Superfamily Ephemerelloidea
Family Ephemerellidae (Spiny Crawler Mayflies)
Numbers
75 spp. in 14 genera in our area(1), ~150 spp. in 22 genera total(2)
Range
Holarctic & Oriental, more diverse in NA(2)