Chiasmocleis ventrimaculata

Description

Chiasmocleis ventrimaculata, commonly known as the dotted humming frog, is a species of frog in the family Microhylidae. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. Its natural habitats are subtropical or tropical moist lowland forests, swamps, and intermittent freshwater marshes. The frog is known to have a mutualistic relationship with the burrowing tarantula Xenesthis immanis. The tarantula provides the frog protection from predators and a food source from insects feeding on the remains of its prey. The frog's foraging protects the tarantula's eggs from ants. This mutualism between microhylids and large spiders is common and occurs in various parts of the world.