It has a dark black background color marked with variable orange or red spots and "bracelet"-like patterns on the limbs.

The species is endemic to northwestern Colombia, where it is known from the western banks of the Atrato and San Juan rivers to the Pacific coast.

O. solanensis have a dark black background color marked with variable orange or red spots and limb bracelets.

[3] The species can be identified as a member of its genus based on its medium to large size, the lack of sexual dimorphism, the contrasting bright spots on the solidly dark background, the absence of the omosternum, the relatively large discs on second, third, and fourth fingers, the absence of the maxillary and premaxillary teeth, the presence of the tarsal tubercle, and the secretion of alkaloids from its skin.

Within its genus, it is placed in the histrionicus-lehmanni-occultator group based on its medium to large body size, the absence of the omosternum, the spotted or banded back, and its range being on the Pacific slope of Colombia and northwestern Ecuador.

O. andresi differs in its light to dark brown background color, fingers, and toe tips and comparatively smaller size.

O. histrionica also has a light to dark brown background color, fingers, and toe tips and is much smaller than O. solanensis.

[3] The species is endemic to northwestern Colombia, where it is known from an area of 16,621 km2 (6,417 sq mi) from the western banks of the Atrato and San Juan rivers to the Pacific coast.

It is distributed widely throughout the department of Chocó, with populations of the frog being known from near Bajo Baudó, Mecana, Bahía Solano, Serranía del Baudo, La Victoria, El Salero, Nuquí, and Quebrada Docordo.

Males defend territories and attract females by vocalizing from elevated perches such as branches and logs up to 4 m (13 ft) high.

The end of the conflict between the Colombian government and guerrillas has increased the species' vulnerability to trafficking and habitat loss caused by agriculture and extractive industries.

[1] Wildlife trafficking also threatens O. solanensis, with individuals of the species being highly valued in the illegal trade.