404 GEOLOGICAL SUEVEY OF THE TEEEITOEIES. 



2. C. lateralis, Say, (Jour. Acad. Pliila., IV, p. 320, 4.) — Obtained in 

 Colorado ; but quite common in the States east of the Mississippi Eiver, 

 and extending from British America to Florida, and west to Texas. In 

 common with some other species, it has a race of individuals which are 

 deeply suffused with red when alive. 



3. C. mridicatus. New species. — Slender, form of G. truncatus, Eamb. 

 Pale green ; front of the face rather blunt, the end of the tylus decurved ; 

 upper surface of the head with whitish, sericeous pubescence, scabrous, 

 uneven, minutely punctured ; the under side obsoletely wrinkled, finely 

 pubescent. Antennae slender, clothed with remote long hairs ; the basal 

 joint extending beyond the tylus, freckled with, dark brown, and usually 

 with a short stripe on the under side ; the apical joint rather slender, 

 hardly longer than the preceding, more or less orange, at base paler; 

 the second and third joints subequal, faintly streaked with brown both 

 above and below. Eostrum reaching not quite to the posterior coxse ; 

 the middle line and the apical joint, excepting at its base, dark j^iceous. 

 Face and cranium sometimes with a few small spots and streaks of 

 brown or black on the middle and near the eyes. Pronotum with long 

 pubescence, coarsely punctured in irregular transverse rows, the cal- 

 losities forming a prominent ridge nearly across the entire width ; ante- 

 pectus and pleura uneven, a little less coarsely punctured ; the meso- 

 and metapleurse uneven, a little more coarsely punctured; the posterior 

 flap of the metapleura oblique truncated, witii the upper angle rounded 

 at tip, and, together with the acetabular caps, minutely puncturea. 

 Legs greenish yellow, the femora rather robust, dotted with brown in 

 rows, those of the upper, inward side sometimes confluent in a large 

 patch ; tibisB freckled with brown; at tip and the tips of each of the tar- 

 sal joints brownish, the nails pisceous. Scutellum uneven, irregularly, 

 somewhat coarsely punctured, the lateral edge recurved, the tip sunken, 

 and its apex almost acute. Corium hyaline, rather finely punctured, 

 the clavus sometimes blackish, or streaked with black ; costal margin 

 and base broadly coriaceous ; the nervures usually with a few blackish 

 points and streaks; membrane hyaline. Tergum black on the two or 

 three basal segments, very coarsely punctured at base, and a little less 

 coarsely on th6 disk ; the apex with a black streak running from the 

 penultimate segment to the tip, narrowing posteriorly ; the antepenulti- 

 mate segment often "with two or three black dots on the disk ; connexi- 

 vum immaculate, minutely punctured. Venter immaculate, minutely 

 wrinkled and shagreened, finely pubescent. The punctuation of the 

 surface is sometimes brownish, either above, or both above and below. 



Length, 5-6 millimeters ; width across the humeri, lf-2 millimeters. 



This species is quite unlike any of the others thus far discovered in 

 the United States, in slenderness and neatness of proportions, as well 

 as in the bright freshness of its colors when recent. It inhabits Colo- 

 rado, Nebraska, and Dakota. 



Leptocoris, Hahn. 



L. trwitattus, Say, (Jour. Acad. Phila., IV, p. 332.) — A common spe- 

 cies in Colorado, Arizona, and California. 



Jadera, Stal. 



J. hwmatolotna, H. Schf., (Wanz. Ins., VIII, Fig. 873.) — No specimens 

 were collected by the survey, but it has been found in Arizona, Texas, 

 Kansas, and California. 



