Oreobates pereger, also known as the Ayacucho Andes frog, is a species of frog in the family Strabomantidae. It is endemic to Peru where it is known from the eastern slopes of the Cordillera Oriental and Cordillera Vilcabamba mountain ranges. Description Male Oreobates pereger grow to a snout–vent length of and females to . The skin of dorsum and venter is smooth and with dark gray, reddish-brown, or dark gray-brown ground colour. The flanks are yellowish brown to dull yellow with an orange suffusion ventrally. Eggs are large and yellow, up to in diameter. Fecundity is about 18–20. Habitat and conservation Oreobates pereger is a terrestrial frog inhabiting montane cloud forests at elevations of above sea level. It is threatened by habitat loss caused by agricultural expansion, wood collecting, and human settlement. References pereger Amphibians of the Andes Amphibians of Peru Endemic fauna of Peru Taxa named by John Douglas Lynch Amphibians described in 1975 Taxonomy articles created by Polbot