Chiasmocleis ventrimaculata, also 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. Description The Chiasmocleis ventrimaculata is a small nocturnal frog of a snout - vent size of approximately 2 cm. The Chiasmocleis ventrimaculata lack webbing on the hind foot. Furthermore, the Chiasmocleis ventrimaculata has heads that are more narrow and pointed and bodies that are slender as well. These frogs prefer to remain underground during the day and emerge after dusk alongside of their spider hosts and forage the surrounding areas. These frogs do not appear to be territorial, often several frogs ranging from 1 to 4, can be seen emerging from a tarantula’s burrow. As tadpoles, they are typically around 17 mm in length and a body length of 7 mm. Their bodies are flattened and are about twice as wide as they are deep. Their widest position is located at the eyes. The eyes are large and widely separated. The snout when viewed from the dorsal position is broad and bluntly rounded and just rounded in the lateral view. The tadpole has no nostrils absent. These tadpoles have small mouths that are terminal. Their upper lips are large, fleshy and cover the oral cavity. They also lack horny mouthparts. These tadpoles are nearly uniform pale brown with additional pigmentation. These frogs will cautiously exit the burrow at dusk to begin their foraging. The feeding habits of the frogs is that of a modified-sit-and-wait forage mode. This means that they will sit and wait for food to arrive similar to ambush predators. These frogs were observed to stay within a range of 5 cm from the entrance of the burrow and at the end of their foraging period, will rapidly dart back into the burrows. Habitat and Distribution The Chiasmocleis ventrimaculata live among leaf litter and other vegetation close to the ground. During mating seasons, they are known to reproduce at temporary ponds of rainwater. Unfortunately, little is currently known about their habits during the dry season. The Chiasmocleis ventrimaculata’s native geographic distribution is quite disjointed. Most species are found in western Amazon region (Colombia, Ecuador, Peru, Bolivia, and western Brazil). Conservation Status Habitat Loss The Amazon is the center of intense degradation because of human occupancy,