During the summers of 1963 and 1964, in the course of field work on the Beartooth Plateau, Park County, Wyoming and Carbon County, Montana, at an elevation of ca 3550 m, we preserved parasites from 52 adult specimens of the Water Pipit (Antbus spinoletta alticola). Since there is a paucity of information about the parasites of this species in North America, we thought it im- portant to publish the results and to present a compilation of known parasites (Table 1). Mallophaga.--The earliest comprehensive listing of North American Mallophaga (Kellogg, 1899) does not report any lice from the genus Antbus. A subsequent compilation (Malcoresort, 1960) does mention two species: Bru1/2lia corydalla (Host: Antbus pratends) from Iceland (Timmermann, 1950) and Ricinus japonicus (Host: Antbus s. japonicus) from Japan (Uchida, 1915). Gross (1937) recorded Philopterus subfiavescens (Host: A. s. rubeseels) from the coast of Labrador. Hopkins and Clay (1952), however, regard subfiavescens as a descriptive phrase and not as a name, and thus do not list the genus Antbus as host of the genus Philopteru. Recently, BalSt (1955) found three species of Mallophaga (Phil- opterus banaki, Ricinus japonicus and Menacanthus sp.) on A. s. spinoletta from the Tatra Mountains of Czechoslovakia. On the Beartooth Plateau we found four of the 52 pipits infested with Ricinus japoicus, two with Menacanthus sp. and one with both Menacanthus sp. and Bruelia sp.. Specimens of these lice have been deposited in the collections of the Department of Entomology, University of Mimmsota. The present known distribution of Mallophaga from the genus Athus is shown in Table 2. Acarina.--In 1964 five birds were sacrificed in search of nasal mites. Two of these five birds, both females, contained respectively 16 and six Ptilonyssus sp.. Neither Pereira and Castro (1949) nor George (1961) list the genus Athus as host for the genus Ptiloryssus. The specimens are deposited in the collection of the Department of Zoology, University of Montana. Nematoda.--Two of the 52 adult birds were infested with Dip- lotriaena ozouxi. The parasites were located in the body cavity and air sacks in the region of the trachea and gizzard. The same species was reported by Spasskaja (1949) for the Tree Pipit (Antbus tr&ialis) from Western Siberia. The specimens are deposited with the collection of the Department of Zoology, University of Montana (U of M 778-779-780). Acknowledgmets.--For identification of specimens we thank Dr. R. D. Price, University of Minnesota (Mallophaga); Dr. G. M. Clark and C. M. Clifford, Rocky Mountain Laboratory, Hamilton, Montana (Acarina) and Dr. R. C. Anderson, Ontario Research Foundation for confirming our nematode identification. We also 34] Aricolaas A M. Verbeek W. P. Ca'ney Bird-Bnding ß - Jnury TABLE 2. DISTRIBUTION OF THE MALLOPHAGA OF THE GENUS ANTHUS Mallophaga A. s. spinoletta A. s. alticola A. s. japonicus A. pratensis Philopterus hanzaki Menacanthus sp. Ricinus japonicus + Bruelia sp. Bruelia corydalla + + + Location Czechoslovakia Montana- Japan Iceland Source Baler, 1955 Wyoming Uchida, Timmermann, This paper 1915 1950 wish to acknowledge the help of Miss Judith Humphrey, Beltsville Parasitological Laboratory, for her assistance in locating references. In 1963 the field worl was supported by a grant from the Chapman Memorial Fund, American Museum of Natural History and a Louis Aggassiz Fuertes Research Grant, Wilson Ornithological Society. Support from a National Science Foundation grant, administered by Drs. R. D. Taber and R. S. Hoffmann, is gratefully acknowledged for the summer of 1964. We thank Dr. F. A. Pitelka for some editorial suggestions. LITERATURE CITED ANDERSON, R. C. 1959. Preliminary revision of the genus Diplotriaena Henry and Ozoux, 1909. 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