A new Scinax Wagler, 1830 of the S. rostratus group from central Brazil (Amphibia, Anura, Hylidae)

4 ABSTRACT: A new species of the genus Scinax belonging to the S. rostratus species group is described from the State of Goias, Brazil. Scinax constrictus sp.nov. is characterized by small snout-vent length (males ranging 20.8-29.4mm; females 28.2-35.6mm), protuberant nostrils, vocal sac pigmented, superior eyelid, calcar, and jaw tubercles present, dermal constriction on the shoulders in adults, two separate tubercles above the cloaca in females, and a discrete anal flap in males; an open land, non-forest species. A description of the advertisement call is provided.