Coloration ranges from dark brown to beige, with a band on each side of the body that joins between the eyes and the muzzle. Large tree frog, reaching about 7 cm (3 in). Males have double vocal sacs. It is distributed in the South, Southeast and part of the Northeast of Brazil (Izecksohn & Carvalho-e-Silva, 2001). Species with quite curious defensive behavior - when captured secretes a white substance, similar to a "glue", from where comes its common name. It is essentially arboreal, being able to take refuge in very high bromeliads. Little is known about the reproduction of this species. In Rio Grande do Sul, some populations (Itati and Maquiné) were found in reproductive activity after heavy rains, and several males descended from the trees and the bromeliads where they were singing, to lentic bodies of water. The song recalls the braying of an ass (Izecksohn & Carvalho-e-Silva, 2001).