Marbled poison frog

The marbled poison frog or marbled poison-arrow frog (Epipedobates boulengeri) is a species of frog in the family Dendrobatidae found in western Colombia (Cauca, Nariño, Valle del Cauca Departments, including Gorgona Island) and northwestern Ecuador, at elevations of 10 - 1500 m asl. It likely represents a species complex of at least two species.

Description
Males measure 15 - 20 mm and females 17 - 21 mm in snout–vent length. Colouration is variable; dorsum is dark reddish to uniform dark brown, sides are black. There is a pale yellowish or creamy white lateral line and cream-coloured dorsolateral line. Iris is dark coppery black.

Diet
Diet is varied and includes mites, ants, coleopterans, dipterans, homopterans, and colembolas.

Habitat and conservation
Its natural habitats are dense moist tropical rainforests as well as altered habitats like gardens and railway tunnels. It is a common species. It is threatened by habitat loss; while a somewhat adaptable species, it disappears if the habitat becomes too open and dry.