450 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Leagth to tip of venter 5 millimeters; to tip of hemelytra 6 milli- 

 meters. Width of base of pronotum 2 millimeters. 



One female, the type, is the only ispecimen that I have seen. It is 

 from British Cohimbia, and belongs to the Museum of Comparative 

 Zoology. It seems to be closely allied to the European S. latipes H. 

 Schf. 



21. 8. orMculata, new sp. 



Almost circularly ovate, deep dull black when invested with the cloth- 

 ing, but shining black when rubbed ; the upper surface invested with 

 long, erect, golden and blackish, almost matted pubescence. Head wide, 

 from above blunt and short ; the front almost vertical, a little curved, 

 clothed with erect black hairs and prostrate golden pubescence,- front a 

 Uttle flattened ; vertex with an indented point each side near the eye; 

 ocelli small, pale piceous ; base of head smooth, not obviously punctate, 

 a little convex, forming a moderate neck ; tylus very slightly prominent, 

 shining, pale fulvous; lower edge of the clypeus fulvous, very slenderly 

 recurved ; labrum broad, fulvous, invested with pale yellow bristles* 

 Eostrum testaceous, reaching upon the posterior coxse. Antennae short, 

 moderately slender, the basal joint short and stout, testaceous; the 

 second quite slender, pale piceous, testaceous at the base and piceous 

 at tip, about twice as loug as the basal one ; it and the following joints 

 with remote erect hairs; two last joints subequal, loug, subfusiform, 

 blackish, longer than the basal joint. Pronotum transverse, contracted 

 at the collum, flattened, the sides oblique but arcuated, with the sub- 

 margin moderately broadly flattened, of almost uniform width through- 

 out, a little upturned, thick, a little turned in and widened at the pos- 

 terior angles ; posterior margin moderately deeply concave, the humeral 

 angles produced, broad, short, scooped out ; anterior lobe with the cal- 

 losities feebly elevated, but not nearly extending to the lateral margin, 

 the transverse line deeply seated ; posterior lobe about one-third the 

 length of the anterior one, indistinctly rugulose. Scutellum not dis- 

 tinctly punctate, short and wide, deeply Innately impressed on the mid- 

 dle, the surface beneath the dense pubescence polished, jet-black. Ster- 

 num jet-black, polished, finely whitish pubescent, the pieces of the meso- 

 pleura more or less white. Coxas piceous, paler at tip; legs pale orange 

 or fulvous, the sj)ines and extreme tip of the tibiae, the basal joint of 

 tarsi, the end of the apical joint, and the nails piceous. Hemelytra flat, 

 disk-like, the costal margin almost semicircular, narrowly flattened and 

 upturned, pale yellow, not wider at base ; corium velvety-blackish, 

 densely coated with prostrate golden pubescence and with longer black- 

 ish hairs ; costal area very wide, with a testaceous spot on the middle 

 entering from the outer margin, and a similar one before the tip ; nearly 

 one-half of the posterior margin running from the outer angle testa- 

 ceous, and the inner edge of the clavus very narrowly of the same color; 

 disk with about four round bluish spots, and a similar spot near the apex 



