Ihewitt] CANADIAN TICKS 235 



the Veterinary Inspectors of the Department in western Canada a 

 letter that I drafted requesting specimens of ticks. I also sent the 

 same letter to Farmers' Institutes in British Columbia and Alberta 

 and others who might be able to assist. These requests resulted in 

 the receipt not only of specimens of D. venustus but of other species 

 also. In this matter Mr. J. W. Cockle of Kaslo, B.C., was particularly 

 active and helpful, for which assistance I am extremely grateful. 

 The result of this inquiry which is now given showed that D. venustus 

 is generally distributed throughout southeastern British Columbia 

 and in the adjacent portion of Southern Alberta. The greatest 

 number of records were received from the Kootenay region. Further 

 studies would no doubt extend the known area of distribution. 



Localities. 



Specimens were received from the following localities: 



Bridesville, B.C. (Coll. W. Thompson, 17-iv-1912). 



Keremeos, B.C. (Coll. W. Thompson, 29-V-1912, on horses 

 imported from the state of Washington and proceeding 

 to the Peace River district, Alta., also collected 10-vi- 

 1912). 



Ymir, B.C. (Coll. J. W. Cockle, iv-1912). 



Kaslo, B.C. (Coll. J. W. Cockle, 6-V-1912). 



Crawford Bay, B.C. (Coll. W. W. Mooney, 6, iv. 1912). 



Cranbrook, B.C. (Coll. J. H. McClure, 6-V-1912 at 3,500 

 feet altitude, attached to a woman's arm; also coll. 

 S. MacDonald, 19-vi-1912). 



Wattsburg, B.C. (Coll. Miss Watts, 16-V-1912). 



Penticton, B.C. (iv-1910). 



Nelson, B.C. (Coll. J. W. Frank, vi-1912; also coll. J. W. 

 Cockle, 15-V-1912). 



Pincher Creek, Alta. (Sent by D. Warnock, 5,000 ft. alti- 

 tude). 

 Hadwen (1912) has also recorded this species from the following 

 localities : 



Kaslo, B.C.; Pilot Bay, B.C.; Osoyoos, B.C.; Merritt, B.C.; 

 Huntingdon, B.C., and Treesbank, Manitoba, where it 

 was collected by N. Criddle.) 



Hosts. 



The specimens received by me had been taken from the following 

 hosts: 



Horse, man, grizzly bear and mountain sheep. 

 Hadwen (1912) records the following hosts: 

 Cattle, horses, man, rabbit and squirrel. 



