AbstractThe oribatid mite family Mycobatidae is represented in America north of Mexico by the eight genera,CyrtozetesBehan-Pelletier, CeresellaPavlitshenko, GuatemalozetesMahunka, MinunthozetesHull, MycobatesHull, PelopsisHall, PunctoribatesBerlese, andZachvatkinibatesShaldybina. Species occur in forests, grasslands, and arctic soils, in canopy habitats, and in the marine and freshwater littoral zone. Three new mycobatid species from North America are described:Ceresella reevesisp. nov.from forest habitats of western North America,Cyrtozetes lindoaesp. nov.from canopy habitats of western Canada, andPunctoribates weigmannisp. nov.from forest litter in eastern North America. The descriptions ofPelopsis bifurcatus(Ewing) andPunctoribates punctum(C.L. Koch) are expanded based on specimens from North America.Punctoribates palustris(Banks) is redescribed based on specimens from throughout North America.Punctoribates armipes(Banks) is considered a junior subjective synonym ofP. palustris(Banks). New distribution records are given forGuatemalozetes danosBehan-Pelletier and Ryabinin andMinunthozetes semirufus(Koch). Diagnoses are given for each genus discussed, and keys are provided to the eight genera of Mycobatidae of North America and to species ofCyrtozetesandPunctoribates, genera not recently revised.