406 GEOLOGICAL SURVEY OF THU TERRITORIES. 



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

 If millimeters. 



Captured in Colorado. 



C). L. hicrucis, Say, (Jour. Acad. Phila., lY, p. 322, No. 3.) — Ko speci- 

 mens of this species were captured by the survey; but it inhabits a 

 part of the territory passed over in Western Kansas, and is found also 

 in New Mexico, Nevada, California, Texas, Florida, Maryland, and 

 extends south into Mexico. 



, J Nysius, Dallas. 



1. N. Californicus, Stal., (Eugenics Eesa omkring jorden, p. 242.) — 

 Obtained in Colorado; it inhabits also Dakota, Arizona, and Texas, 

 and one specimen has been collected by myself in Maryland, a few miles 

 southwest of Baltimore. 



2. JSf. angustatus. New species. — Dark gray, more slender than N'. thymi, 

 Wolff. Head moderately long, very minutely sericeous pubescent ; the 

 superior orbit of the eyes smooth, pale testaceous ; the surface with 

 coarse, partly confluent,- brassy-black punctures; the median line of the 

 tylus pale testaceous, its side brassy black; under side of head pale testa- 

 ceous, blackish near the bucculse, with remote coarse black punctures on 

 the middle, and some finer ones around the base of the antennae, and with 

 a patch of fine black punctures posteriorly beneath the eye. Bucculse 

 smooth, pale testaceous; the rostrum piceous, reaching to the posterior 

 coxse. AntennsB moderately slender, the torulus testaceous, excepting 

 only its base; basal joint testaceous, paler beneath; the tip and several 

 dots on the upper side fuscous, the inner line dark piceous ; remaining 

 joints piceous, paler, and more rufescent beneath; the apical joint 

 darker, not quite as long as the second ; the second joint about one- 

 fourth longer than the third. Pronotum narrowing anteriorly; the 

 sides sinuated; surface pale testaceous, sericeous pubescent, coarsely 

 punctured with brassy black in irregular, transverse rows ; the callosi- 

 ties and surface before them blackish, more closely punctured, the ante- 

 rior and posterior margins slenderly ; the median line at base and the 

 outside of the elevated humeri smooth, pale testaceous ; pectoral surface 

 sericeous j)ubescent, irregularly punctured with brassy black ; the 

 acetabular caps, gular collum, a broad stripe on the metapleura between 

 two blackish ones, and the surface adjacent to the posterior coxse pale 

 testaceous. Legs testaceous; the femora with large brown dots; the 

 tibiae striped with brown, and somewhat brown at base and tip ; tarsi 

 brown on the apices of all the joints ; the nails piceous. Scutellum pale 

 testaceous, sericeous pubescent, having a few coarse black punctures ; 

 the median carina dark piceous, and the surface next to the tip blackish. 

 Hem elytra very pale testaceous, very minutely punctured, sericeous 

 pubescent; the posterior margin of the clavus and the nervures marked 

 with interrupted brown streaks ; costal margin slenderly ; the outer end 

 of the posterior margin of the corium and a streak on its middle, which 

 bends abruptly inward and runs longitudinally about one-third way 

 forward, brown ; membrane very faintly brownish, marked with a few 

 brown clouds. Tergum piceous-black ; the incisures of the segments, the 

 sides of the fourth, fifth, and sixth segments, and a spot each side of the 

 terminal segment rufo-testaceous ; connexivum margined with, and at 

 the incisures spotted with, testaceous. Venter griseous, minutely, uni- 

 formly sericeous pubescent ; the second and third segments with a trans- 

 verse series of a few very black points ; the disk of the fifth and base of 

 disk of the sixth segment yellow, with an interrui)ted black stripe on 



