GEOLOGICAL SURVEY OF THE TERRITOEIES. 397 



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blacli dot near the middle of each of the three princii^al segments. 

 Legs pale testaceous ; the femora with numerous black points, a few 

 of them at the tip larger j the tibiae with minute brown punctures; tarsi 

 pale rufous ; the nails black, excepting the base. Scutellum a little 

 rugulose, somewhat confluently punctured, more finely so than the pro- 

 notum, and near the tip still more finely and densely so ; the apex 

 smooth, broadly white. Corium finely, less densely, punctured than 

 the pronotum ; the exterior suture often with a streak of closer punc- 

 tures ; the general surface sometimes appearing reticulatedly punctured ; 

 the costal margin and embolium whitish, the latter' with a few punctures ; 

 membrane slightly embrowned, having six or seven dark, longitudinal 

 nervures. Tergum black, minutely, densely rugulose and punctured ; 

 the apical segment margined with yellow ; connexivum black, coarsely 

 and partly confluently punctured, the outer margirp yellow, with the 

 inner edge of that color scalloped. Yenter pale testaceous, or in life 

 greenish- white, very sparingly punctured on the smooth disk ; the sides 

 finely rugulose, and thickly X3unctured ; the general puncturing often 

 red, the large punctures black, aud arranged in a triple series of wavy, 

 faint spots each side, and with a geminate group at the outer angles of 

 the incisures ; the apical angles of the sixth segment a little rounded and 

 carrying a black dot. 



In the males the finer i)unctures of the venter are usually red and 

 more evenly distributed ; the coarser ones are black and not arranged 

 in spots ; the genital segment is deeply emarginated, and each side of it 

 sinuated. 



Length of (^ , 8J; of $ , 8-9 J millimeters. Width across the humeri, 

 5-6 millimeters. 



Arizona, Kansas, Colorado, Kew England, and generally throughout 

 the States east of the Mississippi. 



Solcostethus, Fieb. 



S, ahhreviatus. Kew species. — Fusco-cinereous more or less spotted 

 with black, rugulose, and finely punctured with black. Head broad and 

 long, convex along the base of the tylus, broadly rounded in front, 

 closely, confluently punctured, more densely so along the sides and in 

 front; the lateral lobes flat, with sharp edges, a little expanded in front 

 of the eyes ; the lobes meeting in front of the tylus, but scarcely in con- 

 tact on the extreme tip ; under side of the head pale yellowish, coarsely 

 punctured, with the margin and a few coarse punctures in front of the 

 eye deep black. Rostrum extending to the venter, yellow, with the tip 

 black. Antennee long and slender, reddish-yellow, or rufous: the basal 

 joint pale, very short; second and third subequal, shorter than the fol- 

 lowing; fourth and fifth much longer, subequal. Pronotum broad and 

 short ; the lateral margins smooth, yellow, a little arcuated ; the humeri 

 somewhat prominent, rather broadly rounded ; the submargius made 

 almost black by the dense punctures ; surface somewhat broken, irregu- 

 larly spotted with piceous and black, the transverse Impressed line dis- 

 tinct ; pectoral segments coarsely and irregularly punctured with brown- 

 ish, each with from one to three black dots, including one on theosteole. 

 Scutellum a little indented before the middle, finely and closely punc- 

 tured with black, still more so in spots at base, where are also two or 

 three small white spots or streaks; the apex bluntly rounded, white. 

 Legs testaceous, minutely and sparsely ])unctured with brown ; the 

 femora a little scabrous; tibia3 attii) and tarsi rufescent ; the nails black 

 at tip. Tergum black, the connexivum yellow, with double black spots 



