Characteristics: Species closely resembling L. fuscus, distinguished through their respective vocalizations. Medium-size species measuring about 4.0 cm in length. It has a pointed snout and the color of its back varies from grayish to shades of green, ornamented with irregular brown spots. A few individuals develop a longitudinal stripe in the middle of their backs.

Distribution: Uruguay, Paraguay, and Northeastern Argentina. In Brazil, it is distributed in the central and southeastern regions.

Habitat: Formations open to forests, in edges and clearings in the riparian and gallery forests, and lake, creek, and swamp edges.

Habits: Crepuscular, nocturnal, terrestrial, and aquatic. This species prefers low vegetation (grass) near lakes, ponds, rivers, streams, wetlands, swamps and puddles. During the day, they burrow in cavities in the soil, while out of the vocalization season, in regions that undergo long periods of drought, they may overwinter buried at depths of up to 32cm.

Diet: Small insects and arthropods.

Breeding: Oviparous, and the reproductive period seems to be heavily influenced by rainfall in the areas where they occur. They vocalize from the ground, near temporary or permanent puddles or near the entrance of their burrows. The burrows are built by the males in places that will soon be flooded. Females are led to the burrow, where the embrace and spawning take place. Both males and females can remain in the nests to take care of the offspring.

UFRA: Infrequent species, it was spotted in Wetlands with Herbaceous Plants and Wetlands with Riparian Forests.