Life (root) » Animalia (Animals) » Arthropoda (Arthropods) » Hexapoda (Hexapods) » Insecta (Insects) » Pterygota » Ephemeroptera (Mayflies) » Furcatergalia (forked-gill mayflies) » Pannota » Caenoidea » Caenidae (Small Squaregilled Mayflies) » Caenis