NORTH AMERICAN COLPIOPTERA. 13 



11. C abbreviatiis n. sp. — Form ])arallel, purple black, opaque, clothed 

 with conspicuous white aud fuscous hairs, the bristles scarcely evideut. An- 

 tenua3 black, serrate. Head and thorax finely and densely punctate, the former 

 with the lateral oblique carina distinct, the latter with tlie sides rounded and 

 narrowed in front, and obliquely moderately narrowed behind, basal plicie mod 

 erate, hind angles slightly produced, the carina joining the submarginal at apex, 

 but the angle is seen to be distinctly more produced beneath and strongly sinuate 

 inside. The elytra are parallel, briefly rounded at tip, punctate striate, the in- 

 tervals feebly convex, densely punctulate. In the one specimen before me the 

 disc is clothed with fuscous pubescence, from base nearly to apex with a few 

 white hairs intermixed, while the sides have white haii-s with occasional fuscous 

 ones ; beneath rather tinely punctulate, the coarser punctures more evideut on 

 the abdomen. The prosternal lobe appears shorter and less rounded in front 

 tliaii usual, the posterior process very sliort and strongly ascending, not margined, 

 submarginal lines cariniform, nearly straight, hind coxal plates narrowed exter- 

 nally. Legs slender, thighs piceous, tibise and tarsi rufous, tarsi a little stouter 

 and more spinous, the tirst joint of middle and hind pair but little longer than 

 the last. Length .22 inch ; 5.5 mm. 



One male, California. Coll. Austin. 



I think I saw in Mr. Fuller's collection a more robust female with 

 the fuscous and white hairs more mixed. In the single specimen 

 before me the frontal margin is impressed at middle. The j^roster- 

 num is shining, very finely, not closely j)unctulate, the secondary 

 punctures but little larger, the sides of the prosternum beneath are 

 tinely and rather closely punctulate over their whole area. The in- 

 tervals of the elytra are transversely wrinkled. The pubescence is 

 quite long and dense, appressed, and when not rubbed almost com- 

 pletely hides the surface beneath ; on the under surface the |)ubes- 

 cence is finer and cinereous. 



H. 



12. <'. er>'llii'Ol»US Er.— Elongate ovate, convex, piceous, acuminate behind, 

 clothed with tine cinereous pubescence, busal two joints of antennae and legs 

 yellow. The antennae are slender, feebly serrate, the second joint two-thirds as 

 long as the third. The head is closely punctulate, feebly convex, the frontal 

 margin strongly elevated aud broadly rounded. Thorax subojiaque, convex, 

 sides strongly rounded and narrowed in front, less narrowed and sinmite behind, 

 the angles carinate and slightly diverging, a short linear impression at middle 

 behind, a transverse one on each side of basal lobe; lobe tridentate, basal plica^ 

 rather short, the external rudimentary ones evident, the disc, base and sides 

 l>osteriorly, extremely finely and densely punctulate and clothed with ex- 

 tremely fine and short pubescence, anteriorly the punctuation is stronger and 

 less dense and the pubescence is much longer and less fine; there are no 

 coarser punctures evident. Elytra a little wider than the thorax, gradually 

 rounded and narrowed from in front of the middle to the tip, striae moder- 



