During four 5-day trips to the 3 northern-most Maine counties of Aroostook, Piscataquis, and Somerset, we captured 347 small mammals from which we collected 415 fleas, 36 lice, and 10 larval botfly ectoparasites. Additionally, we located records of fleas from Maine in the Traub collection at the Carnegie Museum of Natural History, Pittsburgh, PA. From these sources, we establisned new state records of occurrence in Maine for 2 flea species, Conorhinopsylla stanfordi and Orchopeas howardi, and 1 louse species, Neohaematopinus semifasciatus. We herein report 27 new county records for fleas and 3 for botflies. The total number of flea species known to occur in Maine is now 32.