List of the flea species of the State of Chihuahua, Mexico, with new records and a new species of Strepsylla Traub, 1950 (Siphonaptera: Ctenophthalmidae: Neopsyllinae: Phalacropsyllini).

A total of 45 flea species, assigned to 22 genera, are documented for the state of Chihuahua, Mexico. Fourteen records are new for the state, five species are recorded for the first time for the country and the state, and the number of species of Mexico is increased to 177 species. Chihuahua now has 25.4% of the total flea species registered for the country. A new species of the genus Strepsylla is described from specimens from the Flora and Fauna Protection Area Cerro del Mohinora, in the northwestern part of the Sierra Madre Occidental. Strepsylla mohinora sp. nov. is included in a published taxonomic key for the species of Strepsylla.