was in error in his supposed separation of the sexes. The species is ap- 

 parently rare and I have seen no other specimens than the types. In the 

 absence of Tnales, the tabular position is tentative only. 



C. canadensis sp. nov. 



Oval, moderately elongate, color above a nearly uniform piceo- or fuscotestace- 

 ous, fading into a dingy yellow at the extreme margins of the elytra, the 

 prothorax commonly entirely dark, but sometimes with the middle narrowly 

 paler toward the sides; head with or without a pale vertex spot; body beneath 

 black; legs and antennae pale, the latter infuscate apically. Punctuation through- 

 out typical of the group, a little sparser and finer than in suturalis or medialis, 

 nearly the same as in patrucHs; the irregular series of coarser punctures on 

 the elytra present but not conspicuous. Length 3.5 to 4 mm.; width 1.95 to 

 2.1 mm. 



Described from a series of 23 examples taken at Winnipeg, Man., 

 by Mr. J. B. Wallis. The fore and middle tarsi of the male are only 

 moderately dilated, though evidently wider than in the female, the 

 anterior claw of the fore tarsus a little thicker and slightly shorter. 

 Females are typically shining like the males, but two examples of this 

 sex bearing same date as shining specimens of both sexes, are opaque. 

 These, however, are not distinguishable from opaque females of 

 patruelis and may belong to that species, which is commonly taken by 

 Mr. Wallis in the same locality. Canadensis is very similar in size and 

 form to patruelis, but is, as a rule, of darker and more uniform color, 

 and with distinctly narrower male tarsi. 



C. sellatus Lee. 



Oval, nearly equally narrowed before and behind ; color above pale testaceous, 

 beneath black. Head blackish each side, a pale vertex spot, and the clypcus an- 

 teriorly diffusely paler. Thorax with front margin more narrowly, base broadly 

 infuscate, also a diffuse discal spot confluent with the dark margins. Elytra 

 with a large fuscous blotch occupying the posterior portion of the disk, and in 

 front of this a small elongate spot nearer the side margin than the suture. 

 Punctuation moderate, coarser beneath as usual, the irregular series of larger 

 punctures on the elytra variable in development. Length 3 to 3.25 mm. ; width 

 1.65 to 1.75 mm. 



Described from Dakota. Specimens at hand are from Winnipeg 

 and Stony Mountain, Manitoba (Wallis.) This species may, I think, 

 always be known by the rather sharply defined posterior elytral blotch, 

 contrasting strongly with the pale ground color of the elytra. It is 

 rather strongly narrowed in front, nearly as in ovoid ens. Siituralis 

 is less narrowed and consequently more obtuse in front, with more ex- 

 tended elytral cloud and unmodified male anterior tarsal claw. In 

 sellatus the male tarsi are rather narrow, but evidently wider than in 

 the female, and the anterior claw is visibly stouter. 



C. lutescens Lee. 



Typically a trifle smaller and narrower than medialis, with the elytral disk more 



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