Adult: Species description based on Savage (2002). A very small frog. Males to 18 mm, females to 22.4 mm. Dorsal: Dorsal coloration ranges from grey-brown to light brown, often with some mottling and a light patch in between the shoulder blades and a dark bar between the eyes. Occasionally, two parallel stripes or a central light stripe may be present. The dorsal surface has some warts and ridges. The upper surfaces of the thighs are barred and reddish in color. Ventral: Ventral surface yellow, with dark mottling on the throat but not the belly. Concealed surfaces: The groin and rear surface of the thighs are reddish. Extremities: Feet are not webbed.
Habitat: Lowland and premontane forest to 1330 m. Ecology: A leaf litter inhabitant that is active during the day (Savage 2002). Call: This species has no vocal sac but produces a low squeak (Savage 2002). Type locality: Palmar (Costa Rica)
Diagnostic description: It has a flat head. The canthus is markedly concave. The tympanum is round with a diameter substantially equal to the eye. The back has folds, and between the skin is tuberculate. Digital discs are small and pointed.
Members are pink, crossed by dark bands. The back is brown with a pink area extending above the tympanum, from the eye to the sacrum. The male measures 15 mm. (Length of head and body); the female is 21 mm. The hind legs are blackish brown, except the underside of the femur, more brown color on. The ventral part is dirty white. The chest and throat are densely dotted with coffee. Head exhibits a blackish brown streaks, except at the edge of the upper lip, which has three pairs of bright vertical bars, which in turn represent the edges of three lip points.
Reproduction: Encapsulated produce eggs which are laid in terrestrial conditions, with direct development (no tadpoles) (Savage 2002).
Distribution in Costa Rica: In the lower center and south of the Pacific slope, gallery forests of Guanacaste, mountain passes mountain ranges of Guanacaste and Tilarán, between 3 and 1,330 m land. Lift (Savage 2002).
Distribution outside Costa Rica: Found on the Pacific coast and the west end of Panama. They are found from sea level up to 1170 meters.