A list of the butterflies of the state of Jalisco, México, is presented, which includes 608 species, in 308 genera, and in 22 subfamilies of both superfamilies of the Rhopalocera: Papilionoidea and Hesperioidea. This list was obtained from a detailed faunistic work presenting all known localities in Jalisco from which each butterfly species is known. In gathering data for this list, more than 11 museums and institutional collections in México and the United States were examined, and all available bibliographic references (monographs, revisions, faunistic works, and others) which apply to Jalisco butterflies were examined over the last 12 years by the authors. The richness of Jalisco's butterfly fauna is illustrated and comparad to other Mexican states