A new species of Scinax from the lowlands of the Atlantic Rain Forest remains in the southern region of the State of Bahia, North-eastern Brazil, similar to the S. auratus Wied-Neuwied, is described. This species is characterized by the following combination of characters: moderate size (males 23.0-27.1 mm SVL); snout rounded in dorsal view; dorsal colour pattern with dorsolateral yellowish stripe above greenish-brown background, with an interocular yellow transversal bar; vocal sac smooth; presence of a tubercle and dermal fold on tarsus advertisement call with four to five notes; call duration 0.17-0.24 s, dominant frequency 2.07-3.79 kHz. The advertisement call description and informations on natural history are provided.
A new species of the Scinax ruber clade from the Brazilian Cerrado Domain similar to Scinax fuscomarginatus, S. parkeri, S. trilineatus and S. wandae is described. It is characterized by small snout-vent lenght, body slender, head approximately as long as wide and slightly wider than body, subovoid snout in dorsal view, protruding snout in lateral view, a developed supratympanic fold, absence of flash colour on the posterior surfaces of thighs, hidden portions of shanks and groin, and large vocal sac. Scinax lutzorum sp. nov. differs from S. fuscomarginatus, S. parkeri and S. trilineatus by its slightly larger SVL; from Scinax fuscomarginatus and S. parkeri it differs by its more slender body; from Scinax fuscomarginatus and S. trilineatus the new species differs by its wider head and more protruding eyes; and it differs from Scinax parkeri and S. wandae by its shorter snout. Comments on the type specimens of S. fuscomarginatus are presented and a lectotype is designated for this species.