CEDEMERID^ OF BOREAL AMERICA. 403 



bordered with yellow, and either entire or with a feeble 

 notch. 



Slightly more robust in form than any other of the 

 genus. It was described as Ditylus, but as the 

 penultimate joint of the tarsus is spongy beneath, it has 

 been removed to the present genus. 



Occurs in Colorado and New Mexico. 



Copidita fuliginosa Lee. (Oxacis) New Species, p. 166. 



Form slender, piceo-testaceous or brown, moderately 

 shining, finely cinereo-pubescent. Head and thorax finely 

 punctate. Thorax longer than wide, sides arcuate in 

 front, narrower posteriorly, apical and basal margins 

 paler. Elytra not densely punctulate. Length .34 inch. ; 

 8.5 mm. 



In the male the antennas are longer than half the body; 

 sixth ventral prominent, deeply emarginate. The female 

 has shorter antennae; the fifth ventral rounded at apex, 

 sixth not visible. 



The above description is a transcript of the original, 

 specimens not being at present before me. 



From the label in the LeConte collection, it is evident 

 that it was intended to describe it as a Copidita. 



Cabo San Lucas, Sierra San Lazaro and San Jose del 

 Cabo. Baja California. 



Copidita bicolor Horn (Ditylus) Trans. Am. Ent. Soc, 

 1870, p. 88. 



Nearly as robust as obscura, color above and beneath 

 bluish, thorax red. Antennae black, not close to the eye 

 at base. Head blue, rather coarsely not densely punc- 

 tate. Thorax not wider than long, sides arcuate in front, 

 obliquely narrowed behind, surface shining, with coarse, 

 irregularly placed punctures, color red, the basal margin 

 black. Elytra blue, feebly shining, densely punctate, 



