416 GEOLOGICAL SUEVEY OF THE TEEEITOEIES. 



It inhabits Montana,' and near Snake Eiver, in Idaho. Several speci- 

 mens have also been collected in California. 



2. B. brachycerus. New .species. — Shorter and more robust than'jR. 

 Pacificus. Shining black, clothed with longer pubescence, which is 

 dense and erect on the head. Head not so long as in B. Pacificus ; the 

 surface scabrous ; the cranium a little depressed, and with a shallow, 

 longitudinal groove on the middle; the anterior margin of the lower 

 cheeks yellowish ; eyes brown ; the posterior lobe of the eyes black, 

 encircled with yellow; antennae black, not reaching quite as far as to 

 the base of cuneus ; the torulus yellow at base ; second joint but little 

 more slender than the basal one, about as long as the pronotum ; third 

 and fourth joints subequal; rostrum reaching upon the posterior coxge, 

 yellowish; the fourth joint and base of the third piceous; third joint 

 very short, but little more than one-half the length of the fourth. 

 Pronotum short and wide, coarsely scabrous, densely punctured and 

 wrinkled, having close, long pubescence ; the lateral margins broadly 

 sinuated; callosities distinctly elevated, excavated anteriorly; humjeri 

 n. little prominent; the margin exterior to them rather broadly rounded. 

 Scutellum coarsely wrinkled, very sparingly punctured ; apical half of 

 coxee and lower margins of the pleural segments yellowish white; pro- 

 pleura very coarsely, roughly punctured. (Legs lost from the speci- 

 mens.) Hemelytra longer than the abdomen, scabrous, closely j)unc- 

 tured; the i)ubescence moderately dense, long, prostrate; cuneus much 

 shorter than in E. Pacificus; membrane brown, or blackish fuliginous ; 

 the nervule black. Venter highly polished, very minutely, obsoletely 

 wrinkled, sparingly pubescent. 



Length to tip of venter, 4^5 millimeters. Width across the humeri, 

 2-2^ millimeters. 



Inhabits Weld County, Colorado. A closely related, if not identical, 

 species is found on the island of Santa Cruz, California. 



Laiops, Burm. 



L. Iiesperius. New species. — Black, opaque. Head bluntly triangular, 

 much stouter than in L. Sahlbergi, Fallen ; the face yellow, shining, hav- 

 ing a large, irregular, black circle on the middle, which throws off a branch 

 posteriorly and another toward each eye ; the throat, tylus, and ends of 

 cheeks also black. Eyes stouter and, together with the peduncle, shorter 

 and less prominent than in L. Sahlbergi. Antennae black, slender, almost 

 setaceous at tip ; the second joint a little longer than the third and 

 fourth united; third and fourth subequal in length, the former tapering 

 toward the tip ; rostrum reaching to the posterior coxse, blackish-piceous, 

 the basal joint more or less yellow. Pronotum transversely wrinkled, 

 invested with grayish, prostrate pubescence, and laterally with erect 

 hairs; the anterior side a little narrower than the space between the 

 eyes; lateral margins slightly sinuated ; the callosities elevated, smooth; 

 behind them is a transverse, impressed line. Pectus with grayish 

 pubescence; the inferior margins of the pleural pieces yellowish. Legs 

 black ; the apex of the femora and base and apex of the coxse orange- 

 yellow. Scutellum and hemelytra with grayish, prostrate pubescence; 

 the corium arcuated and gradually widened posteriorly ; the exterior 

 margin of corium and cuneus pale yellow ; membrane smoke-brown, with 

 the nervule black. Abdomen densely sericeous pubescent, with the 

 surface next the ovipositor more or less yellowish ; the posterior seg- 

 ments more or less hairy. 



