1 ?, Horse Creek, Upper Columbia Valley, October 14th, 19U3. Microtus 

 drummondi. 



2 ? ?, Kicking Horse Canyon, Alberta, October 6tli, 1903. Evotomys gapperi. 



17. Ceratopbyllus charlottensis (PL IX. fig. 33). 



Pulex charlottensis Baker, Journ. N. Y. Ent. Soc. vi. p. 56 (1898). 



Cemtojjhyllas charlottensis id., Proc. U. S. Nat. Mm. xxvii. p. 390. t. 12. f. 6—10 (1904). 



This species was described by Mr. Carl Baker from females fuuiul by the 

 Rev. J. H. Keen on Queen Charlotte Islands. We have some S6 and ? ? of 

 a flea found both in British Columbia and in Alberta which we consider to be 

 charlotten'ii», the ? agreeing well with the description and figures given by Mr. 

 Carl Baker. 



We publish herewith a figure of the clasping organs of the c?. It will be 

 noticed by comparing PI. IX. tig. 33 with fig. 30 that the eighth sternite is quite 

 different from that of tclegoni, as it bears no hairs at the apex. The jirocess of the 

 clasper is much larger than in telegoni, while the finger is much smaller. The 

 manubrium is curved. The ninth sternite resembles that of telegoni in the main, 

 but there are two spines at the apex, with a thinner one behind them. There is 

 also a patch of short liroad bristles instead of the two long curved ones of telegoni. 

 The dorsal hairs and the flap with spines found in telegoni are not present in 

 charlottensis. 



We have eight examples of this insect, as follows :— 



1 <?, British Columbia. Peromgscus leucojins. (W. Wenmann.) 



1 ? , „ „ Seotoma cinerea. „ 



1 (J, Red Deer, Alberta, Canada, May 22ud, 1901. Peromgscus arctiem. 

 (G. F. Dippie.) 



2 ??, Red Deer, Alberta, Canada, April 25th, 1901. Ecotomys saturattis. 

 (G. F. Dippie.) 



'Z Si, Horse Creek, Ujiper Columbia Valley, October 13th, 19o3. Pcromgseas. 

 (G. F. Dippie.) 



1 ?, Horse Creek, Upper Columbia Valley, October 13th, 1903. I'eromgscus. 

 (G. F. Dippie.) 



