346 Memoirs on the Coleoptera 



longer and more conspicuous than in pruinosa, the dense confused 

 punctures of the broad fiat intervals almost similar; under surface 

 closely but not coarsely punctate and with lineate scales throughout, 

 the legs also distinctly although more finely squamulose. Length ( 9 ) 

 4.2 mm.; width 2.2 mm. Colorado (Caiion City), — Wickham. 



This species differs from pruinosa in its stouter form, more 

 tubulate thoracic apex, less coarse pronotal punctures, flatter and 

 more evenly squamulose pygidium in the female, and coarser and 

 more conspicuous lineolate white scales throughout the body. 

 The dimensions of the male and female of pruinosa in my collection 

 are 3.2-4.2 by 1.3-2.0 mm. 



Stictobaris Csy. 

 As in Pycnobaris, the beak is separated from the head by a deep 

 transverse sulcus above, but otherwise there is no resemblance at 

 all in the habitus of the body, the species of Stictobaris being narrow 

 and elongate, with the upper surface more or less strongly convex, 

 the sculpture Very coarse and the prothorax tubulate at apex, often 

 with a deep subapical constriction extending across the upper 

 surface. The two following species differ from any of the three 

 hitherto described. In the more variegated vestiture and other 

 features : 



*Stictobaris tubifera n. sp. — Elongate-suboval and moderately convex, 

 shining and deep black, the legs black, picescent distally; sparse scale- 

 like hairs of the pronotum long, suberect, irregularly bristling and fulvous 

 in color, those of the elytra long, whiter, sparse, condensed in one or two 

 basal tufts on each and in a short loose line on intervals two to six near 

 apical third; beak in the female arcuate, thick, slightly longer than the 

 prothorax and closely, strongly punctate, with some bristling scales at 

 base above; prothorax a third wider than long, the sides subparallel, 

 feebly arcuate, rapidly rounding and deeply constricted at the tubulate 

 apex, which is rather more than half as wide as the base; punctures deep, 

 very coarse and in mutual contact, the smooth median line evident but 

 very narrow, subtumid, not entire; scutellum small, wider than long; 

 elytra two-fifths longer than wide, evidently Vv^ider than the prothorax 

 and fully twice as long, the sides parallel, gradually converging and 

 arcuate behind the middle, the humeral callus small but rather prominent; 

 grooves moderately coarse, deep, the intervals one-half wider than the 

 grooves, each with a line of rather coarse punctures, sometimes confused, 

 the second and third a little wider; abdomen not very coarsely, shallowly 

 and rather loosely punctate. Length (9) 3-7 mm.; width 1.6 mm. 

 Mexico (Tepehuanes, Durango), — Wickham. 



Distinguishable readily from crihrata by the still coarser sculpture, 



