322 



THE CANADIAN ENTOMOLOGIST. 



seven to ten smaller ones. All the dorsal and ventral sclerites of 

 segments one to seven are small and (in extended specimens only?) 

 widely separated. The hinder edge of the sternites is slanting, the 

 upper hinder angle projecting backwards. The seventh sternite is sinuate 

 (Fig. 42). 



Legs. — The arrangement of the bristles is of the type usually found 

 in this genus. The hind tibia bears six dorsal pairs of bristles. One of 

 the apical bristles of the second hind tarsal segment reaches to the middle 

 of the fifth segment, while the longest apical bristle of the fourth hind 

 tarsal segment extends nearly to the claw. The bristles on the ventral 

 surface of the mid and hind tarsi are numerous. The fifth segment is as 

 slender as in Ch. irichosa, being much slenderer than in C/i. ursi. It 

 bears ventrally a subbasal hair. The proportional length of the tarsal 

 segments is as follows : 



We have two females of this species, one from Eagle River, Sicamous, 

 Canada, ist Sept., 1903, collected from Canis iaira?is by Mr. G. F. 

 Dippie, and another from Mabel Lake, British Columbia, 6th May, 1902, 

 taken from Ursits cwieriamus by Mr. Allan Brooks. 



Length, 3.5 mm. 



2. Ctenopsyllus seleiiis, spec, nov. — Close to Ctenopsyllus hesperomys, 

 Baker (1904), which we know only from the description, the ? alone 

 being described by Baker. 



ffead. — The three upper bristles of the frontal row are spine-like, 

 beins short and stout, while the other bristles of this series are slender, 

 gradually tapering to a fine point. There are two genal spines, as in Ct. 

 hesperomys. 



Thorax. — The pronotum bears a comb of 26 spines. The mesonotum 

 is one-fourth longer than the metanotum in the $ , while these two tergites 

 are nearly equal in length in the c?  In hesperomys the mesonotum is 

 said to be twice the length of the metanotum ( ? ). The number of hairs 

 on the metathoracical epimerum is slightly variable, there being usually 3, 

 3, I in the $ , and one or two more in the 9 . 



Abdomen. — The tergites bear, like the metanotum, some short teeth 

 at the apex, being, moreover, minutely serrated. The numbers of these 



