dorsal cloud broad but faint, abbreviated in front. Punctuation above moder- 

 ately close, the series of coarser elytral punctures visible but not conspicuous. 

 Beneath black, coarsely but not very closely punctate. Front tarsi moderately 

 dilated, the first and second joints subequal in width, anterior claw slightly 

 thicker, more strongly bent and a little shorter than the posterior one. Length 

 3.6 to 3.7 mm.; width 1.9 to 1.95 mm. 



Described from ic? (type) and 3?'s from the Virgin River, Utah, 

 the type series from the Roberts Collection kindly loaned by the 

 American Museum of Natural History, to which the type is returned. 

 A female paratype is retained in my own collection. 



This species is of same size and general appearance as the paler 

 forms of medialis, but is of slightly narrower form, the sides being 

 less strongly rounded, the punctuation beneath not so coarse and close, 

 and the male tarsi distinctly wider. It is really much more closely 

 related to canadensis, but the clearer yellow color, with evident though 

 faintly defined posterior elytral cloud seems at present distinctive. 



C, obscureplagiatus sp. nov. 



Elongate oval, about equally narrowed in front and rear, brownish ferruginous 

 or brownish yellow, the head a little paler in front; thorax and elytra variable, 

 the former nearly uniformly brown or piceous brown, the latter with the disk 

 usually dark brownish with obscure piceous markings of the niedialis type, the 

 base and sides of the elytra gradually somewhat paler. Surface polished both 

 above and beneath in the male, the females either shining like the males, or 

 alutaceous and opaque. Head and thorax finely typically punctate, elytra more 

 coarsely quite densely and nearly uniformly so, the series of coarser punctures 

 represented only by a lightly impressed line at the middle of the disk in basal 

 half, scarcely detectable in some examples. Body beneath black, coarsely 

 closely punctate. Front and middle tarsi of male moderately widely dilated, 

 the second joint conspicuously widest, the anterior claw a little stouter and more 

 abruptly curved basally. Length 3.8 to 3.9 mm.; width 1.95 mm. 



Described from a series of 2c?'s and 5?'s (3 shining, 2 opaque) 

 from Port Townsend, Wash. (A. Seaton), and Portland, Oregon. 

 (Wickham.) The type is a male from the first named locality, kindly 

 given me by Mr. Waldo Dodge of Melrose Highlands, Mass. 



This species is remarkably similar in nearly all respects to compar. 

 The entire absence of elytral clouds (virtually absent in some speci- 

 mens of obscureplagiatus, the evident disparity in elytral punctures, 

 and the generally finer and less dense punctuation, together with the 

 locality may be depended on to distinguish the latter. 



C. pedalis Fall. 



A little larger than medialis and lutescens, the form less narrowed and hence 

 more obtusely rounded in front. Color a dingy yellow, the head, base and 

 diffuse median spot on the prothorax, and almost the entire disk of the elytra 

 infuscate; beneath black, epipleurae and legs dull yellow. Punctuation above 

 quite dense, a little less so basally, the irregular series of coarser punctures 

 evident on the elytra, the outer discal one, however, quite inconspicuous. 



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