Here, we describe Euroglyphus perico sp. nov. from a nest of a mammal, probably Peromyscus sp. (Rodentia: Cricetidae), from Durango, Mexico. As this new species combines features of the genera Euroglyphus and Gymnoglyphus, Gymnoglyphus is proposed as a junior subjective synonym of Euroglyphus. An updated diagnosis of the genus Euroglyphus and a key to species of the World are provided.