This study examines the seven described species of Epiphragma Osten Sacken (Diptera: Tipulidae s.l.) known to occur in North America including Mexico. A key to species, descriptions, distributional ranges, habitat information, and literature references are given and the wing patterning and male genitalia are illustrated. The male of Epiphragma celator Alexander is described for the first time and the species range is extended north from Michoacan, Mexico to southern Arizona, United States of America. The range of Epiphragma arizonense Alexander is extended from southern Arizona south to Sinaloa, Mexico. The male hypopygium of Epiphragma nebulosum (Bellardi) and wing and hypopygium of Epiphragmaoreonympha Alexander are illustrated for the first time.