GEOLOGICAL SURVEY OF THE TEERITORIES. 453 



a broad, yellowisli stripe on eacli side, from the upper angle of the eye to 

 the tip of the pronotiiui; the inclosed middle space pale brown ; mediau 

 carina yellowish. Below the yellow stripes, on each side, is a broad, ir- 

 regular brownish stripe, reaching from the eye to the tip of the pronotum. 

 A bright yellow stripe runs from the base of the elytra to the posterior 

 cox£e. Elytra pale ash-brown, with an irregular row of rather small, 

 dim brown spots along the disk, one or two sometimes distinguishable 

 above and below ; nervules mostly yellow ; wings i^ellacid, with some 

 dark nerves near the apex ; posterior femora crossed by three oblique, 

 dim brov/n bands 5 tibiae bluish. When living, it is of a pale pea- green, 

 the dorsal stripes whitish ; hind tibiie blue. 



Bi'mensions. — $, length, .76 inch 5 elytra, .43 inch 5 posterior femora, 

 .43 inch. ^ , length, .5(3 to .60 inch. 



There is a strongly m.arked variety, v/hich I have included in this 

 species, but w^hich may be distinct. 



Yar. a. — Paler throughout 5 space between the stripes almost uniform 

 in color with the strix)es 5 lateral brown stripes often narrower or obliter- 

 ated 5 elytra, narrower and longer, reaching nearly or quite to the ex- 

 tremity of the abdomen. The male appears to be uniformly longer and 

 larger. 



ISTamed in honor of Dr. Charles S. Turnbull, of Philadelphia, w^ho first 

 discovered it. 



Found only between Eed Buttes and Independence Eock, Wyoming. 



C. occidentalism nov. sp. PL II, fig. 2. 



Much like G. femur-rubrum^ Burm. Male cerci very broad and flat ; 

 hind femora banded; tibiae blue. 



Frontal costa generally flat above the ocellus and sulcate belovv it, 

 but sometimes sulcate above; lateral carinse sharp and divergent; 

 median carina distinct on the posterior lobe of the pronotum, barely 

 visible in front ; the transverse impressions very distinct ; elytra and 

 wings as long as the abdomen; anterior and middle femora rather 

 small and slender; posterior femora, in the female, a little shorter than 

 the abdomen ; valves of the ovipositor, esx)ecially the upper ones, long 

 and deeply excavated. The cerci of the male are unusually broad and 

 flat, enlarged at the base and suddenly decreasing in breadth near tlie 

 middle ; the last ventral segment apparently terminates at the tip with 

 a broad, blunt tooth ; i)rosternal spine broad at base, blunt and trans- 

 verse. 



Color, (dried after immersion in alcohol.) — Much like G, femur -ruhr urn, 

 but more of a i)ale, ashen hue ; face dull brownish-yellow ; a triangu- 

 lar dusky spot on the occiput, with the apex toward the front ; a cres- 

 cent of minute black dots around the back part of the eyes ; the dark 

 band behind each eye as usual; pronotum pale reddish-brown above. 

 Elytra ash-brown, w^ith a row of small brown spots along the middle of 

 the disk, reaching from near the base two-thirds the distance to the tip, 

 ceasing, or growing dim, at the point where the nervules become sud- 

 denly less distinct ; a few dots are found above and below this middle 

 row in some specimens. Wings transparent ; nerves yellowish, except 

 at the apex, where tliey are dusky. The posterior femora are crossed 

 by three oblique brownish bands — inside, yellowish; apex, dusky: 

 tibiai, bluish-yellow; blue, when living. 



Dimensions. — 9 , length, .88 inch ; elytra, .CO inch ; i^osterior femora, 

 .47 inch. J^ , length, .69 in(*h. 



Found in Eastern Wyoming, from tlie mouth of Laramie Pivcr to lied 

 Buttes. 



