Tetrapsyllus (Tetrapsyllus) tantillus (Jordan & Rothschild, 1923)

NHM. Argentina—Chubut: Cholila. Mammalia—Rodentia—Ctenomyidae— Ctenomys haigi . Chile; Argentina— Chubut: Cholila, Leleque. Neuquén: Arroyo Chapelco, Auca Mahuida, Cerro Chapelco, Chos Malal, Lagos Curruhue, Lago Huechulafquen, Lago Norquinco, Laguna Verde, Río Quilquihué, San Martín de Los Andes. Río Negro: El Bolsón, Laguna Blanca, Península de San Pedro de Bariloche, San Carlos de Bariloche. Santa Cruz: Estancia Cerro Ventana. Mammalia—Didelphimorphia—Didelphidae— Thylamys pusillus . Rodentia— Cricetidae— Abrothrix hirta, Abrothrix olivacea, Akodon dolores, Akodon neocenus, Auliscomys sublimis, Eligmodontia sp., Euneomys sp., Irenomys tarsalis, Notiomys edwardsii, Oligoryzomys longicaudatus, Reithrodon auritus . Ctenomyidae— Ctenomys haigi, Ctenomys sp. Muridae: Rattus norvegicus, Rattus sp. Sanchez et al. (2009); Sanchez & Lareschi (2013). Thylamys pusillus occurs in northern Argentina (Chaco) (Barquez et al., 2006), where T. (T.) tantillus has not been recorded. Probably the host belongs to another species and was misidentified.