A review of the North American Catallagia Rothschild, 1915, with the description of a new species (Siphonaptera: Ctenophthalmidae: Neopsyllinae: Phalacropsyllini).

Catallagia duffneri Lewis and Haas is described from the Pinaleno Mountains of southeastern Arizona. The 15 known North American members of the genus are illustrated, a key to them is included and the individual species are discussed with respect to their taxonomic characters, host preferences and geographic distribution.