According to the book "Large Peruvian Mammals Unkown to Zoology" (1992) A forestry official in Lima told Hocking that the Ecuadorean botanist Benigno Malo had once claimed to have seen and photographed a large, black "ape" which he saw in a forest near the Peruvian border. According to Malo, he had been collecting orchids when he saw the animal moving towards him through the trees; he was able to take a single photograph of it before it disappeared. Malo told the forestry official that the animal had probably been a chimpanzee released from a circus, but Hocking believes it is more likely to have been an isnachi.