400 GEOLOGICAL SURVEY OF THE TERRITOEIES. 



lar; the latero-posterior margins abruptly sinuated. Propleura roiigbly 

 X^uiictured. having only a very few tubercles j meso- and metapleura 

 more or less obsoletely, and postero-interiorlj', coarsely punctured. 

 Legs black ; anterior and intermediate tibise and all the tarsi reddish- 

 orange or fulvous, the nails piceous; posterior femora stout, in the 

 male much stouter, compressed, shagreened, the outer margin forming 

 a broad ridge, which bears a series of tubercles, and parallel to this, 

 inwardly, runs a broad groove; the middle surface closely beset with 

 large tubercles. On the middle below is a large spur, at the tip two 

 stout teeth, and along the margin five or six smaller ones. The under 

 surface is likewise grooved, and somewhat tuberculated; i^osterior 

 tibiae ibliated exteriorly throughout the whole length, densely scabrous ; 

 the outer margin gradually arcuated at base, abruptly rounded at tip, 

 with two teeth near the tip and one at its inner corner; the inner 

 margin not expanded, granulated, armed with several teeth near the 

 tip; the tip ferruginous $ . Posterior femora of female more arcuated, 

 fusiform, feebly grooved both above and below, scabrous, i^ubescent, 

 granulated, with small teeth on the upper outer margin, and four or 

 more large oblique spurs on the inner margin, from beyond the middle 

 to the tip ; tibiae broadly foliated, roughened, and minutely granulated ; 

 the outer division sinuated behind the middle and carried back con- 

 siderably beyond the tip of the shank ; the inner division much nar- 

 rower, very much narrowed from behind the posterior two-thirds to the 

 tip; the mai^gin ridged and coarsely granulated. Odoriferous glands, 

 orange. Scutellum and hemelytra minutelj' shagreened, the membrane 

 black, or bronzed black-brown. Tergum fuscous, with a yellow stripe 

 from behind the middle to near the tip. Venter paler fuscous, 

 minutely' roughened, and coated with fine pubescence; the hemelytra 

 a little loDger than the abdomen. 



Length, to tip of venter, 28-29 millimeters ; width across the humeri, 

 9J-10 millimeters. 



A male and female from Arizona were the only specimens obtained. 

 The species is named in recognition of the services of Professor Cyrus 

 Thomas, who has labored so successfully in bringing together the 

 species of western Hemiptera. 



2. 21. terminal is^ Dallas, (British Museum List, II, p. 431, Xo. 10.) — 

 Brought from near Fort Cobb by Dr. E. Palmer. It is a very variable 

 species in size, in the amount of tuberculation of the pronotum, and in 

 the width of the foliaceous processes of the posterior tibice. It inhabits 

 most of the Southern States, and seems to be quite common in Texas. 



Mcrocoris, Perty. 



M. distinctus, Dallas, (British Museum List, II, p. 419, lis"©. 2.) — This 

 is also a common species in many parts of the Union, from Northern 

 New York to Florida. One specimen of the usual form was collected 

 in Colorado. 



LejytoglossKSy Guer. 



L. pliyllojnis^ Linn., (Syst. Nat., ed. 12, p. 731;) Anisoscelis alhicinctiis^ 

 Say, (Heterox^t., New Harmony, p. 12, No. 2.) — Several specimens were 

 collected near Fort Cobb, Indian Territory, by Dr. E. Palmer. The 

 species is common in the States south of the Ohio Eiver, and it extends 

 into Central Texas. 



