The new species, Pristimantis milpe, is one of the most widely distributed Pristimantis frogs in the Ecuadorian Chocó, and the reason it stayed nameless is an error in how a name was matched to a population rather than any difficulty in finding the animal.
A frog that is locally abundant in the forests of western Ecuador, and conspicuous because of its loud call, has now been described for the first time, after researchers found that the name it had been filed under since 1980 belongs to a lineage that split from it about 24 million years ago, according to a published phylogeny
Natural History