The authors examined 355 fleas of 9 species from Chili. These were collected from 7 species or subspecies of Ctenomys (Rod., Octodontidae). Tiamastus callens and Polygenis platensis cisandinus are new for this country; Tetrapsyllus maulinus sp. n., Plocopsylla fuegina sp. n. and Plocopsylla reigi sp. n. are described in this work.