234 THE CANADIAN ENTOMOLOGIST. 



A NEW PULEX FROM QUEEN CHARLOTTE ISLANDS. 



C. V. BAKER, FORT COLLINS, COLO. 



Pulex Keenly n. sp. 



Belonging to Division IL, group two of the genus as given in my 

 Preliminary Studies. Nearest sciurorum. 



Head without combs of spines, in the female normal, highest at the 

 occiput, gradually sloping forward, then rapidly curved in front, anterior 

 edge of face nearly perpendicular, but rounded ; head in male flat above 

 or slightly concave, strongly rounded in front, the anterior edge of the 

 face slightly receding. Bristles on head few, these being on both sides 

 of the antennal groove and on the occiput. Antennal groove open, 

 bristles on joint 2 short. Mandibles equalling or slightly exceeding the 

 fore coxje. Pronotal comb of twenty-two spines. Bristols on dorsal 

 abdominal segments in two rows, "the second of six to ten rather short 

 bristles, on the ventral segments in single rows of usually six bristles. 

 First three or four dorsal segments furnished on discs with two to six 

 very short stout teeth. Leg spines rather weak except on the fore coxae 

 and all the tibiae. Apical spines on joint 2 of hind tarsi much shorter 

 than joint 3 ; two of the apical spines of middle tibiae longer than first 

 joint of tarsi. In fore tarsi joint i equals 2 and three-fourths of 5, 3 a 

 little shorter than 5, and 4 little more than half of 5. In the middle tarsi 

 joint 5 equals three-fourths of 2, 3 is one-half of i and nearly equals 5, 

 and 5 is twice 4. In the hind tarsi joint 2 is two-thirds of i, i is two 

 and a half times 3, 2 equals 3 and 4 together, while 4 is one-half of 3, 

 which is somewhat longer than 5. In the male the upper claspers are 

 long, narrow, pedunculate, sides nearly parallel, anterior margin slightly 

 angulated, apex rectangular and furnished at tip behind with a long, 

 stout bristle, and on posterior edge with two short, stout, blunt black 

 spines ; the lower or posterior claspers differ widely from those of 

 sciurorum in being short and suddenly broadened towards the tip. Colour 

 light brown. Length : male, 2.5 ; female, 3 mm. 



Described from several specimens taken on Sitomys Kee7il, at Masset, 

 Queen Charlotte Islands, in August of 1895, by Rev. J. H. Keen, to 

 whom the species is dedicated. I am indebted to Dr. James Fletcher 

 for the opportunity of examining this very interesting and well-marked 

 form. 



