The types of the nominal taxa and series of specimens from Guyana and Amazonian Ecuador display noticeable variation in dorsal coloration. The variety of dorsal patterns of all of the types is included in the variation displayed by the other specimens. All specimens have some amount of dark spotting on the flanks; all have vertically barred lips, on which a pale subocular spot usually is evident. Probably the most unifying physical characteristic of all of the specimens is the nature of the skin on the anterior part of the flank. The skin is elevated amidst an irregular network of depressions. This areolate dermal condition is present in all specimens and does not occur in other species of _Osteocephalus_. The degree of tubercularity of the skin on the dorsum is variable and sexually dimorphic. All males are tubercular, whereas small females are smooth or have only a few scattered tubercles. Large females usually have pronounced tubercles on the eyelids and supratympanic fold. In their description of _Hyla carri_, Cochran and Goin (1970:211) misrepresented the nature of the dentigerous processes of the prevomers, which are angular, not ^-shaped. Their suggestion that the Colombian _Hyla carri_ is related to _Hyla claresignata_ in southeastern Brasil is unfounded. The latter species is smaller (40 mm), has a yellow dorsum and venter, dark brown spots dorsolaterally, oblique dentigerous processes of the prevomers, small tympanum, and smooth skin dorsally. The ventral coloration of the type of _Hyla festae_ resembles that of _Osteocephalus verrucigerus_, but the type differs from _verrucigerus_ by having areolate skin on the flanks and distinct dark markings on the dorsum. In _verrucigerus_ the skin on the flanks is smooth, and the dorsum is uniform dark brown, except for a tan snout in females. Comparisons of the types of the nominal species with series of specimens from Guyana, Colombia, Ecuador, and Peru suggest strongly that the types are representative of one taxon, the oldest name for which is _Hyla buckleyi_ Boulenger, 1882. Consequently, we place _Hyla festae_ Peracca, 1904, _Hyla carri_ Cochran and Goin, 1970, and _Hyla cabrerai_ Cochran and Goin, 1970, as junior synonyms of _Hyla buckleyi_ Boulenger, 1882.