This flea is a montane flea, known from elevations of 1,700-2,300 m, that parasitizes endemic murid rodents. It represents a newly recorded genus and family of fleas for Sulawesi. Morphologically, the closest taxon to N. musseri n. sp. is N. sondaica Jordan, 1931 from Java; it is not closely related to N. luma Traub, 1954 from Borneo.