•geological survey of the territories. 413 



LyguSy Haliii. 



1. X. lineolaris, Palisot de Beaiiv., (Ins. Afr. et Amer., id. 187, pi. xi, 

 Eig. 7.) Capsus oMineatus, Say, (Heteropt., Kew Harmony, p. 21, No. 7.) — 

 Obtained in Colorado. It inhabits almost the whole territory of the 

 United States, and is common in Canada and British America. The speci- 

 mens from the western sections exhibit a nnmber of dark varieties thus 

 far not met with on the Atlantic slope of the continent. This species 

 includes the two extreme races to which I had provisionally given the 

 names L. redimiUis and L. difftisiis; but these names must be dropped, 

 as thus they do not belong to true species. A specimen was collected 

 at Cheyenne in August, 1870. 



2. L. annexus. New species. — Closely allied to the preceding species, 

 but having the pronotum longer and narrower and the punctures closer 

 and finer. Fusco-griseous, or grayish-testaceous, sericeous pubescent. 

 Head minutely, sparingly punctured, indented on the middle of the 

 vertex 5 testaceous, with the tylus and each side of face piceous, or 

 piceous with a median yellow stripe and with marks of yellow each side of 

 the tylus j occiput with a transverse carina. Antennae slender, piceous, 

 or black, or even pale rufo-piceous, with the ends of the joints darker, 

 the apical joint much shorter than the i)receding one. Eostrum reach- 

 ing to the posterior coxse, testaceous, with a black apex. Pronotum 

 blackish-piceous, or grayish-testaceous, coarsely rugose, closely and 

 somewhat finely punctured between the rugsej the lateral margins feebly 

 sinuated; the posterior margin arcuated, testaceous j callosities smooth, 

 prominent ', the collum distinctly defined, testaceous. Propleura piceous, 

 rugose, and closely punctured j the inferior margin pale yellow ; pectus, 

 coxae, and base of femora pale yellow; the upper part of pleurae having 

 a broad black stripe, which is continued along the venter to the tip. 

 Pemora dusky or piceous at tip ; the tibiae more or less suffused with 

 pale piceous ; the tarsi and nails dark piceous. Scutellum rufo-piceous, 

 piceous, or grayish, densely yellowish pubescent, transversely wrinkled, 

 and having only a v^ery few obsolete punctures ; the tip smooth, f)ale 

 yellow. Hemelytra very minutely scabrous, obsoletely punctured, 

 closely yellowish pubescent; the costal margin straight, color brownish, 

 piceous, or testaceous, clouded with brown on the disk and clavus ; the 

 inner apex of the corium having a thickened, short, linear, whitish mar- 

 gin ; cuneus long, testaceous, with a dusky tip, sometimes suffused with 

 rufous ; membrane very long, smoke-brown, with the nervule pale testa- 

 ceous. Venter testaceous, smooth, shining, closely pubescent, the last 

 segment more or less piceous. Sometimes all beneath, except the prop- 

 leura, is pale testaceous. ^ 9 . 



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

 l|-2 millimeters. 



Collected in Colorado. 



, Dacota, Uhler. 



Allied to Polymerus, Pieber. Form long-ovate; head declining ante- 

 riorly, longer than wide, and together with the eyes only a little wider 

 than the front of the x)ronotum; the tylus narrowing almost to an acute 

 tip; eyes large, oval, almost vertical; the superior cheeks with a recurved 

 lower margin; bucculae forming a narrow strip along the anterior half 

 of the gula. Apical joint of rostrum long and very slender; antenuiX) 

 as long as the thorax and abdomen united ; the first joint longer than 

 the head, constricted at base; the second about three times the length 



