The paper provides a critical analysis of research on Peruvian migration "in Chile" organized around the representation and representativeness of these studies in terms of spatial delimitation. We found that the recurrence of the spatial definition of "Peruvian", which represents the entire country, has only been studied in Santiago. We will develop our discussion into three parts: the presentation of data and debates on Peruvians in Chile in the available scientific literature, pointing out how these migrants are projected in a game of omissions and emergencies that promotes a selective visibility of forms and the social consequences of Peruvian migration. We will then detail the methodological applications that, from our point of view, contribute to distort results on the magnitude and/or generalization of these researches findings. Finally, we will discuss how these studies reiterate certain Chilean hegemonic nationalist concepts of otherness.