Female: 80-110 mm, Male: 90- 120 mm. Dorsum dark, grey or reddish-brown with prominent longitudinal folds and large dark white- edged spots (ocelli). Largest ocellus between eyes. Belly whitish, scarcely mottled with grey. Throat dark spotted. Male with strongly developed forearms and two black thorns on the first finger. Toes with fringes. Inner side of femoral grey with dark bar pattern. Looks similar to Leptodactyus chaquensis (greenish femoral without bar pattern).
 
See Lavilla et al. (2010) for the most recent taxonomic changes, synonymizing L. ocellatus with L. latrans.