Described from a series of 5d"s and 4?'s, two of the latter opaque. The 

 type (c?) bears label "Stony Mountain, Man. I5-IV-I2, J. B. Wallis." 

 Other localities represented are Edmonton, Alberta, April 8, 1916 

 (F. S. Carr) ; Wy. ; Glenwood Springs, Colorado (Fenyes) ; and 

 Virgin River, Utah (Roberts Coll.) 



The rather large size, dual elytral punctuation and tumid terminal 

 ventral segment perfectly define this species. 



C. punctilineatus sp. nov. 



Oval, pale flavotestaceous above, black beneath, surface (?) both above and 

 beneath alutaceous and dull. Head black each side, leaving a triangular frontal 

 area pale : thorax with a small discal dot and the extreme edge of the basal 

 margin at middle, piceous ; elytra each with four narrow vittae and the 

 suture, black ; outer vittae interrupted at middle. Punctuation above very fine, 

 with coarser punctures along the suture basally, and elsewhere for the most part 

 confined to the black vittae, especially apically. Beneath moderately punctate, 

 most strongly and closely on the coxal plates. Length 3.6 mm.; width 1.95 mm. 



Described from a single female specimen taken by Mr. J. B. Wallis 

 at Stony Mountain, Manitoba, April 13, 1912. 



The front tarsi of the female are moderately dilated and it is prob- 

 able that they are quite widely so in the male. This species is most 

 closely allied to tumidwentris, but the size is notably smaller, the 

 punctuation very much finer, the coarser punctures of the elytra fewer 

 and differently disposed, and the last ventral without trace of the 

 apical tumidities. 



C. masculinus Cr. 



Elongate, slightly obovate, elytra pale flavotestaceous, head and thorax a little 

 more rufous, beneath black. Surface shining in the male, finely alutaceous and 

 dull in the female. Punctuation of head and thorax fine, not dense, very slightly 

 coarser along the base of the latter; elytra finely, quite densely and very 

 evenly punctate, the series of coarser punctures entirely lacking. Head entirely 

 pale, clypeus finely margined. Prothorax a little narrower at base than the 

 contiguous base of the elytra, sides feebly arcuate or nearly straight, not very 

 strongly convergent in front and not continuous with the sides of the elytra ; 

 base very narrowly dusky at middle, otherwise entirely pale. Elytra each 

 with four narrow vittae and the suture, black ; vittae i and 3 abbreviated at base, 

 4 abbreviated apically, 3 and 4 with a tendency toward interruption at middle. 

 Body beneath finely alutaceous, sides of metasternum, sides of abdomen at base, 

 and last ventral segment more coarsely punctate, elsewhere sparsely finely punc- 

 tate. Anterior tarsi of male rather strongly dilated, the claws very long, 

 broadly laminiform, dilated at middle, the anterior one a little shorter and 

 less acute at tip. Length 4.5 mm.; width 2.3 mm. 



Crotch's type was described from Lake Lebache, the precise location 

 of which is unknown to me but presumably in British Columbia or 

 Alberta. In my own collection this quite remarkable species is rep- 

 resented by a single pair, the male from Dakota and female from Win- 

 nipeg, Man. (Wallis.) 



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