440 PROCEEDINGS OF THE NATIONAL MUSEUM. vol xxvii. 



Genus CERATOPH YLLUS Curtis. 



CERATOPHYLLUS ALASKENSIS Baker. 



1903. Bakek, see p. 394. 



Host: Oftcllxs Iximni'ensls. 

 Ilafntat: Point Burrow, Alaska. 



CERATOPHYLLUS ARCTOMYS Baker. 



1903. Baker, see p. 411. 



Host: Arctomys monax. 

 Ilahitat: Pcterboro, New York. 



CERATOPHYLLUS ARIZONENSIS Baker. 



1898. ]>AKEK, Jouru. N. Y. Eiit. Soc, YI, p. 55. {l\dcx Ai-izu)icnsis.) Host, 

 "Silvery motise.'^ 



Host: Neotoina alhigula. 



Habitat: Tucson, Arizona. 



CERATOPHYLLUS ARMATUS ^A^agne^. 



1900. Wagnek, Hone Soc. Ent. Ross., XXXV, p. 17. Host, "Ptrromijs rolans." 



Host: Seiuro'pteras rassicus. 

 Hahltat: Siberia. 



CERATOPHYLLUS ASIO Baker. 



1903. Baker, see p. 406. 



Host: Megaseops aslo. 



Hahltat: AYellesley, Massacliusetts. 



CERATOPHYLLUS BRUNERI (Baker) Wagner. 



1895. Baker, Canad. Ent., XXVII, p. 132. {Pale.f hnoieri.) Host, "Sj^ervio- 



2)hilus 13-lineatus. ' ' 



1896. OsBORN, Div. Ent. Dept. AgrcL, Bull. V (n. s.), p. 149, tig. 82. {Pulex 



bruneri. ) 

 1898. Baker, Journ. N. Y. Ent. Soc, VI, p. 55. {Pule.c hrunerl.) 



Hosts: CiteUus l-J-Uveatus^ C franldlnll^ and 6'. columhianus. 

 Habitat: Nebraska and Idaho. 



CERATOPHYLLUS CALIFORNICUS Baker. 



1903. Baker, see p. 395. 



Host: Mici'ot'us calif o7'nim(s. 

 Habitat Mountain View, California. 



CERATOPHYLLUS CANADENSIS Baker. 



1903. Baker, see p. 407. 

 Host: (?) 

 Habitat: Ottawa, Canada. 



