Dunn (1931a:413) first reported _Hyla rubra_ from Central America; he recorded the species from the Canal Zone and San Pablo, Panamá. I have examined the material of _Hyla rubra_ from Panamá deposited in various museums. Most of the specimens are faded, discolored, and do not have distinct brown vermiculations on the thighs. The specimens seem to be more like _Hyla rubra_ than any of the other species in the _rubra_ group. The presence of oval choanae and a tympanum larger than the largest finger disc separate these specimens from _Hyla elaeochroa_, a species with which _rubra_ has been confused. _Hyla elaeochroa_ does not occur in the Canal Zone or eastern Panamá. All museum specimens from Nicaragua, Costa Rica, and western Panamá that have been called _Hyla rubra_, plus those mentioned by Dunn and Emlen (1932:25) and Dunn (1933:61) are _Hyla elaeochroa_. The taxonomic status of the many South American populations referred to _Hyla rubra_ and of other populations now recognized as different species is not clear at the present time. Considerable variation in external characters and in cranial features has been observed in South American _rubra_. A review of the taxonomy of these populations is beyond the scope of this paper. Possibly the Central American specimens herein referred to _rubra_ will ultimately be found to be specifically distinct from those in Surinam. Since I have no osteological material from Central America, I have been unable to describe the cranium in this account. Furthermore, I have no data on the ecology and life history of _rubra_ in Central America. _Distribution._--_Hyla rubra_ inhabits lowland tropical forests from central-eastern Panamá to northern South America and thence through lowlands east of the Andes to northern Argentina (Fig. 6). _Specimens Examined._--Panamá: _Canal Zone_: Gatun, UMMZ 52720 (2); Madden Dam, FMNH 67820; no specific locality, UMMZ 56517 (3), USNM 37863. _Colón_: Cerro Bruja, MCZ 13248. _Darién_: El Real, USNM 140569-70, 140573. _Panamá_: Juan Díaz, MCZ 17973; Las Sabanas, MCZ 17581; Río Trinidad, UMMZ 64003; San Pablo, MCZ 1398-9. _Hyla elaeochroa_ Cope _Hyla elaeochroa_ Cope, Jour. Acad. Nat. Sci. Philadelphia, 8:105, 1876 [Holotype.--USNM 30689, Sipurio, Limón Province, Costa Rica; William M. Gabb collector]. Günther, Biologia Centrali-Americana, Reptilia and Batrachia, p. 265, June 1901. Taylor, Univ. Kansas Sci. Bull., 35:859, July 1, 1952. Duellman, Univ. Kansas Publ., Mus. Nat. Hist., 17:270, June 17, 1966. _Hyla quinquevittata_ Cope, Proc. Amer. Philos. Soc., 23:273, April 1887 [Holotype.--USNM 14187, Nicaragua; J. F. Bransford collector]. Günther, Biologia Centrali-Americana, Reptilia and Batrachia, p. 268, June 1901. Noble, Bull. Amer. Mus. Nat. Hist., 38:340, June 1918. _Hyla rubra_ (part): Dunn and Emlen, Proc. Acad. Nat. Sci. Philadelphia, 84:25, March 22, 1932.