This study is aimed at investigating the effects of S. machadoi and B. saxicola tadpole coloration on their predation rates by visually oriented predators. We are also investigating the effects of Limnocoris porphyrus nymph coloration on the same predators, aiming to understand whether this Heteroptera may be converging with S. machadoi tadpoles for an effective pattern of disruptive coloration or, alternatively, if they represent a case of mimicry.