PolymitarcyidaePolymitarcyidae is a family of pale burrower mayflies in the order Ephemeroptera. There are about 10 genera and more than 90 described species in Polymitarcyidae.GeneraThese 10 genera belong to the family Polymitarcyidae:Asthenopus Eaton, 1871Campsurus Eaton, 1871Ephoron Williamson, 1802 LanguidipesPovilla Navás, 1912Pristiplocia McCafferty, 1990Tortopsis Molineri, 2010Tortopus Needham & Murphy, 1924 † Cretomitarcys Sinitshenkova, 2000 † Palaeoanthus Kluge, 1994