We describe a new species of small Hyla from sub-Andean forest of the Departamento La Paz, Bolivia. The new species is mainly characterized by smooth dorsal skin with few minute scattered tubercles, presence of a tympanic annulus, lack of tarsal folds, a brown dorsum with irregular longitudinal dark brown stripes, a broad dark brown lateral stripe extending to loreal region, and advertisement call. The phylogenetic relationships of the new species remain unknown, but given the morphological similarities of adults, we tentatively place it in the Hyla microcephala group.