Six new species from Mesoamerica are described and illustrated into the formerly monotypic genus Parkana. These species are segregated into 3 subgenera, Parkana s.s. (bearing a large dorsal process on the aedeagus) consisting of 5 species, and a single species each in Furcoparca new subgenus (with the median processes of the pygofer formed into a large forked process), and Litoparca new subgenus (lacking both features, genitalia relatively simple, aedeagus bearing lateral teeth). The new species are P. (P.) mirasol, P. (P.) nigra, P. (P.) pallida, P. (P.) tres, P. (F.) chico (all from Mexico, except P. nigra also from Guatemala), and P. (L.) costa (Costa Rica). Keys are provided to subgenus and species. Parkana was previously known only from the type species (P. alata) from western United States. The diversity of Mesoamerican delphacid species is briefly discussed.