A new species of the Ololygon catharinae group from the Brazilian Cerrado (Anura, Hylidae, Scinaxini)

Abstract

We describe a new species of the Ololygon catharinae group from the Cerrado biome, in the state of Minas Gerais, Brazil.Ololygon paracatu sp. nov. is morphologically similar to O. goya and O. skaios, although in phylogenetic analyses, it isrecovered as the poorly supported sister taxon of O. pombali. It is distinguished from other species of the O. catharinaegroup by having a canthus rostralis marked and curved; subovoid snout in dorsal view and protruding in profile; invertedtriangle shaped interocular blotch, exceeding the posterior margin of the eyes; inguinal region and hidden areas of thighswith dark brown irregular blotches on a pale yellow background in life; and advertisement call composed of 3–5 pulsednotes and dominant frequency of 2.5–3.5 kHz. Ololygon paracatu sp. nov. inhabits gallery forests associated with streamsin the Cerrado biome.