Scientists report two distinct populations, both in Atlantic forest in Brazil.

[1] The adult male frog is 30.8 to 39.7 mm long in snout-vent length and the adult female frog is 35.3 to 44.1 mm long.

[1] Scientists noted that the male frog makes three kinds of sounds: It has a short, single-note advertisement call that it uses to announce its presence to females.

Scientists also heard the male frog make a squeaking antagonistic call when another male frog came too close or attempted amplexus.

[1] This frog is named for its habitat but also for the tropicália, or tropicalismo movement, which began in the 1960s and includes many Brazilian musicians.