Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Family Ephemerellidae - Spiny Crawler Mayflies


Mayfly - Attenella mayfly with egg mass - Attenella - female Mayfly in September - Attenella margarita Attenella delantala Attenella margarita nymph - Attenella margarita Attenella soquele Ephemeroptera - Attenella attenuata Ephemeroptera - Attenella attenuata

Unknown mayfly nymph - Caudatella Unknown mayfly nymph - Caudatella Caudatella heterocaudata Caudatella heterocaudata Caudatella heterocaudata Caudatella heterocaudata Caudatella heterocaudata

Mayfly, Drunella sp, subimago - Drunella - male Ephemerellidae, Drunella doddsii - Drunella doddsii Drunella cornutella Drunella cornutella Large mayfly nymph - Drunella stone - Drunella Drunella of some kind - Drunella grandis Drunella tuberculata

3-tailed mayfly (Imago) - Ephemerella - female Ephemerella subvaria - female mayfly - Ephemerella aurivillii   - Ephemerella invaria Mayfly - Ephemerella Drunella ? - Ephemerella - male Mayfly - Ephemerella dorothea Ephemerella invaria ? - Ephemerella invaria - female

Mayfly Larva - Eurylophella prudentalis Mayfly - Eurylophella - male Mayfly - Eurylophella - female Mayfly - Eurylophella - female Eurylophella verisimilis Ephemerellidae - Eurylophella - male Ephemerellidae - Eurylophella - male Mayfly - Eurylophella - female