( fi.M ) 



bristle, the epiiueniin having four bristles, two short ones near the stigma, and two 

 ]oL)g<'r ones further back. 



Abdomen. — The first abdominal tergite liears two rows of bristles, the other 

 tergites one, occasionally with an additional bristle indicating the first row. There 

 are only fonr or five bristles on each side on the middle segments, the stigma 

 standing above the first bristle. At the apex of the seventh tergite there is one 

 long bristle in the S and two in the ? . There are on each side of the first tergite 

 two or three ajiical spines, on the second two or three, on the third two, on the 

 fonrth none or one, the apical edges being, besides, minntely serrate (PI. XVI. fig. 94). 

 The first sternite bears one ventral bristle on each side. The sternites of segments 

 2 to 7 bear two bristles in the c?, while the ? bears two on the second sternite, 

 three on the following three segments, and four on the seventh segment. The 

 seventh sternite is bisinnate in the ? (PI. XVI. fig. 93, vii. st.). 



Legs. — The hindcoxa has a comb of five to seven spines on the iunerside, rather 

 close to the apex, and bears posteriorly at the apex two bristles, the second being 

 small. The tibiae bear one row of bristles on the outerside, the row consisting 

 of seven on the hindtibia. There are seven pairs of bristles on the back of the 

 hindtibia. The bristles on the tarsi are somewhat less nnmerous than in C. hroolm 

 and shorter. The measurements of the tarsi are as follows : — 



BCodified Segments. — The eighth sternite of the <?, which is enlarged, bears 

 two bristles on each side. The clasper is similar to that of C. brooksi, but the hairs 

 at the apex are less numerous ; the long bristles near the dorsal edge towards the 

 base are absent ; there are near the middle of the dorsal edge two bristles which 

 are not found in C. broohsi, and the tine hairs on the iunerside of the clasper are 

 much less numerons than in C. brooksi. The manubrium is much slenderer than in 

 l\ brooksi, and the finger is longer and much narrower, being slightly clnb-shaped. 

 The finger bears one rather long bristle at the distal edge below the apex, two 

 more hairs farther down, and a series of four near the base, there being also some 

 small hairs on the outer side at and near the apex. The ninth sternite (PI. XV. 

 fig. 8.5) is only slightly curved upwards at the end, bearing a number of short 

 hairs along the ventral edge and a row of minute ones at the dorsal edge. The 

 tenth segment is broader than in C. brooksi, and the bristles at the apex of the 

 sternite are shorter. 



The eighth tergite of the ? (PI. XVI. fig. 93) has no bristles neai- the 

 stigma. There is a jjatch of six bristles below the apical projection, and there are 

 two more bristles situated farther down and nearer the base. The stylet is slender 

 and long, being about six times as long as broad. 



Length : (J, 2-4 mm. ; ? , 28 mm. 



We have eleven specimens of this species, as follows : — 



4 (?<?, Red Deer, Alberta, Canada, March lOth, 1901, from Putorius richardsoni. 



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