About Eupsophus calcaratus (Günther, 1881)
Eupsophus calcaratus are moderate-sized frogs, with a snout–vent length ranging from 31 to 36 mm (1.2 to 1.4 in). Their heads are wider than they are long, and they have rounded snouts. Their skin is only slightly granulated, but it bears many spots and a reticulated pattern. Overall, the species' colouration is highly variable, though individuals usually have a characteristic hourglass-shaped pattern on the head. Tadpoles of this species develop in water-filled cavities located on the ground. Males provide parental care, remaining with the species' eggs and tadpoles. The tadpoles are endotrophic. The natural habitat of Eupsophus calcaratus is humid temperate Nothofagus forest, where it occurs in shady microhabitats including swamps and stream borders. The species is common in habitats that suit its needs. However, habitat loss and degradation from deforestation represents a major threat to it, and water pollution caused by forestry work is also a threat.