Ranoidea wilcoxii shows extreme sexual dimorphism, meaning the males and females have different appearances.

A thick black stripe extends from the nostril to the base of the forearm, encompassing the eye and tympanum The lower underside and groin can be from a light yellow to olive green, tending more often towards a beige brown.

Females fit this description year-round, but males turn a bright yellow to yellow-orange during mating season.

Males call with a very soft purring from debris such as rocks, vegetation or the ground immediately next to the water body.

[2] It is threatened by habitat loss, destruction of its native environment, in particular spawning locations, is leading to a decline in the number of this species.