Abstract

We have discovered a spectacular new frog in the genus Hyloscirtus, belonging to the H. larinopygion group, characterized adult females mostly black with large red spots on the whole body and on the toe pads, while the juveniles are black heavily mottled on the dorsal surface with mustard-yellow bands and blotches, and yellow toe pads; fleshy calcar tubercle extending from the ankle, and cloacal ornamentation with two parallel canals, with supracloacal fold present and well defined, reaching the vent. The new species is known only from Cerro Mayordomo, in Fundacion EcoMinga´s Machay Reserve at 2900m, in the eastern Andes of Tungurahua province, Ecuador, near the southern edge of Los Llanganates National Park.