A new species of tree frog, genus Dendropsophus (Anura: Hylidae), from the Amazon of northern Bolivia

Abstract

We describe a new species of small Dendropsophus from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is mainly characterized by smooth dorsal skin, indistinct tympanic annulus, lack of tarsal folds, yellowish-tan to reddish-brown dorsum with obscure dark brown markings, colouration of loreal-tympanic region and flanks sharply outlined and contrasting against dorsum and yellowish-green to bluish-green vocal sac in life. The advertisement call consists of a series of very short pulsed notes, with note repetion rate being the highest known within the species group. Regarding the morphological similarities of adults, the new species is tentatively grouped with species placed in the Dendropsophus microcephalus group.