( 042 ) 



one very short spine-like hair, as in the species just mentioned. The tibiae and 

 tarsi are practically the same as in CK bixoctodentata, bnt the first segment of 

 the foretarsns is rather shorter. 



Modified Segments. — The clasper (PI. XV. fig. 81) is sinnate. The njijier 

 lobe (i'') bears three long and several short bristles ; the lower lobe (p-), which is 

 somewhat cnrved, bears one bristle. There is a fifth bristle at the bottom of the 

 sinus. The finger (f) is long, and bears a number of fine hairs (as shown in PL XV. 

 (ig. 81). The manubrium (m) is about the same length as the finger, and slightly 

 curved. The ninth sternite is hairy at the end (PI. XIV. fig. 73). 



The eighth tergite of the ? (PI. XIV. tig. 78) has no bristles near the stigma. 

 There is a row of bristles near the ventral angle. The eighth sternite (viii. st.) 

 is bifurcate, each lobe bearing a few very short hairs. 



Length: c?, 1 -9 to 2 mm.; ?, 2-3 to 2-4 mm. 



We have a large series of this species colleeted by Messrs. Brimley Bros, and 

 Mr. G. F. Dippie. 



8 ¥ ?, Raleigh, New Carolina, 22 August 1901. Scnloj/s ai/iiat/cus. 



' *^ O J ?» J) ?T r n Ti J) J) 



■* ^ ' JJ JJ J] »J ?» )) >J J) 



^ + ) )J ?) JJ o V )J )» JJ 



4<Jc?, „ „ „ May 1901 



' + + J jj )> )) n )) )) j> 



6 c?c?, Red Deer, Alberta, Canada, 21 August 19U1. Microtus dru7nmondi, 



'^ + + » )) ») J) )j >) )» J) J) )) 



7 <?c?, „ „ „ „ 6 April „ „ „ 



1 S, „ „ „ „ 28 „ „ „ saturates. 



31. Ctenophthalmus wenmanni spec nov. (PL XIV. fig. 75. 77. 79). 



Head. — The head (PL XIV. fig. 79) bears a small frontal tubercle projecting 

 from a groove. There are two rows of bristles between the antennal groove and 

 the oral edge. The eye is vestigial. There are two genal spines, one lying on 

 top of the other, as shown in the figure. The genal edge is produced ventrad 

 into a triangular projection {;//'). On the hinder part of the head there are 

 three rows of bristles. 



Thorax. — The pronotum bears a row of bristles and a comb of twelve teeth. 

 On the mesonotum there are three rows of bristles, besides numerous short ones 

 near the base ; and there are also two dorsal subapical spines and one lateral one on 

 each side. The metanotum bears three rows of bristles, and some additional hairs 

 on the back. There are five bristles on the mesothoracical epimernm, two on the 

 episternum of the metathorax, and eight or nine on the metathoracical epimernm 

 (3. or 4.4.1.) 



Abdomen. — The tergites of the abdominal segments bear two rows of bristles, 

 and some additional ones in front on the back. The stigma, which is elongate^ 

 stands above the first bristle of the second row. The first two tergites bear one 

 or two apical spines on each side, and the third and fourth tergites one. The 

 seventh tergite has in the S four apical spines, of which the second from the top 

 is the longest, and in the ? three, the middle one being twice the length of the 

 uppermost. The first sternite bears ventrally one bristle and several hairs in front 



