Northern rat flea (Nosopsyllus fasciatus). According to Prince, "... it too is an efficient vector of plague. It was found to be even more widely distributed than X. cheopis, occurring in 12 of the 13 States surveyed".[1]
^ abPrince, Frank (1943-04-30). "Species of Fleas on Rats Collected in States West of the 102d Meridian and Their Relation to the Dissemination of Plague". Public Health Reports. 58 (18). Sage Publications. Inc.: 700–708. doi:10.2307/4584449. JSTOR4584449.
^Whitaker, Amoret (2007). Fleas (Siphonaptera) (2 ed.). St Albans: Royal Entomological Society. p. 37. ISBN9780901546852.