GEOLOGICAL SURVEY OF THE TERRITORIES. 403 



Dasycoris, Dallas. 



D. humilis. New species. — Closely resembling D. pilicornis, Burin., of 

 Europe; but rather more slender; the head longer and the antenu8B 

 more slender. Fusco-ciuereous, or pale fulvo-griseous, hispid; the 

 head i)ale beneath; on the sides is a dark-brown stripe running from the 

 antenuEe to the base, tylus cariuately elevated. Antennce having the 

 second joint distinctly shorter than the third; the fourth pale fuscous, 

 conical, acuminate, not coarsely granulated and setose as the other joints, 

 about equal to the third joint in length ; antenniferous spines very short, 

 small. Eostrum reaching to the intermediate coxae; the tip piceous. 

 Pronotum remotely punctured, beset with numerous granular processes, 

 densely clothed with gray pubescence ; the lateral margins, with their 

 close-set, short, teeth-like processes, whitish ; humeral angles with an 

 acute, fuscous tooth, stouter and not so long as that in I), pilicornis. 

 Pectus pale clay-yellow, or even whitish, closely, coarsely punctured, 

 granulated, and with whitish, somewhat matted, pubescence. Legs 

 pale clay-yellow ; the femora granulated, pubescent, mottled with brown; 

 tibise darker at tip; the tarsi somewhat embrowned, and the nails piceous. 

 Mesosternum blackish. Scutellum coarsely punctured, covered with 

 dense, whitish pubescence ; the tip white. Hemely tra beset with coarse, 

 brown granules and short, whitish pubescence ; the embolium grooved, 

 flecked with brown; membrane pale, the nervures interruptedly brown, 

 Connexivum with i^ale, transverse lines, between which are fuscous 

 clouds. Venter minutely wrinkled, closely punctured ; the pubescence 

 minute, whitish ;■ the basal segments having several brown points each 

 side, and usually with a series on each side of all the segments; the 

 lateral margins interruptedly infuscated. 



The posterior femora usually have two spurs beneath, near the tip, and 

 two or three small teeth close to the tip. Sometimes the two longitu- 

 dinal nervures of the corium are interruptedly fuscous. 



Length to tip of venter, 8^-9 millimeters. Width across the humeri, 

 2-2^ millimeters. 



Specimens have been collected in Colorado, Kansas, and California. 



Sarmostes, Burm. 



JJ. rejlexulus, Say, (Heteropt., New Harmony, p. 10, No. 1 ;) H. costa- 

 lis, H. Schf., (Wanz. Ins., JX, p. 270, Fig. 992;) S. virescens, Dallas, 

 (British Museum List, II, p. 520, No. 1.) — Brought by the survey 

 from Colorado. The dark and also the red varieties seem to find their 

 fullest coloring in the region adjacent to Maryland. The western speci- 

 mens which 1 have hitherto examined have been chiefly of the pale- 

 green type. 



Aufeius, Stal. 



A. impressicolUs, Stal., (Kongl. Svenska Akad., vol. IX, p. 222.) — It 

 inhabits Dakota, Arizona, California, and Texas. 



Coriz'USy Fallen. 



1. a borealis, Uhler, (Proc. Acad., Phila., 1801, p. 284.).— This spe- 

 cies is very variable in form and marking, and it may yet prove to 

 be indentical with C. punctiventris, Dallas. It closely resembles G. 

 crassicornis, Linn., of Europe. Thus far it has occurred in Colorado, Ne- 

 braska, Canada, and Massachusetts. 



