Snout-vent up to 85 mm in females. Head slightly wider ,than large, rounded. Snout obtuse, more truncate in lateral profile. Upper jaw moderately projecting beyond lower. Nostrils superolateral; their interval larger than their distance from tip of snout, and than the interocular distance, which is narrower than the upper eyelid. Canthus rostralis rounded; loreal region concave. Eyes prominent, laterally located. Maxillary teeth developed; vornerine teeth in two blunt, close patches between grid behind the choanae. Tongue subcircular, slightly notched behind. Tympanum distinct, about 3/4 of the eye diameter, a strong curved supratympanic fold, reaching the axilla; enlarged glands at the mouth joint, slightly larger than tympanum. Fingers free, imperfectly fringed, rounded on the tip. Rate of the finger lengths: II-IV-I-III. Metacarpal tubercles moderate; subarticular tubercles, blunt, prominent. Foot as in Leptodactylus latrans
. Males with a marked seasonal cycle. Two paired, blackish vocal sacs. Skin slightly glandular on the back, with five pairs of longitudinal folds. No femoral gland evident. Ventrally smooth; unda surface of thighs granular. Discoidal fold present. Dorsally dark green or brownish, with eight 1ongitudinal light stripes and rounded spots. Posterior surface of thighs greenish. Triangular interocular spot evident. Belly white, unspotted. Larval morphology
Very similar to L. latrans
, with a few differences in shape of snout, long of tail and position of spiracle.