350 



lytra less gibbously convex than in S. suloipes, the nervures stouter, 

 pale, and interruptedly spotted with brown, the first ulnar nervure 

 forked beyond the middle, the second ulnar forked before the middle ; 

 the apex with but two or three series of cross-nervules ; the costal area 

 sometimes with two or three cross-nervules at tip; the costal margin 

 very moderately arcuated. Wings milky-white, the nervures brown. 

 Tergum reddish-brown, darker in the center; the margins of the seg- 

 ments and the connexivum pale-yellow. 



Length from tip of head to end of hemelytra, 8 millimeters. Width 

 of i)rouotum, 2^ millimeters. Length of cephalic horn, 1| millimeters. 



Southern Colorado, 0. Thomas ; and Denver City, from B. H. Smith. 



In the specimens which I have examined, there is an entire absence of 

 the large black spot of the sidfes anteriorly of the prouotum, so conspic- 

 uous in S. sulcipes, Say. 



3. S. grossu.?. ISIew sp. 



Shorter and more robust than 8. sulcipes ; the cephalic horn as long, 

 but much stouter, than in that species; very wide on the upper face, 

 and the apex blunt and vertically carinate. Sides of protuberance, 

 cheeks, and anterior pleural pieces infuscated, guttate with whitish, the 

 lateral keels distinctly sinuate a little distance in front of the eyes ; ros- 

 trum tipped with black, reaching almost to the genital segment. Pro- 

 notum curved toward the front more narrowly than in S. sulcipes ; the 

 geminate indentations present, but not black; the sides a little granu- 

 losa. Mesonotura short and broad, the apex feebly tumid; femora 

 more or less dotted with brown ; hemelytra short and wide, strongly 

 arcuated, more oblique at tip than in 8. sulcipes, clouded with brown, 

 and with a few pale transverse patches across the corium ; the nervures 

 thick, remotely and irregularly spotted with fuscous ; the first and 

 second ulnar nervures forked on the same line just before the middle of 

 the corium ; the apical cross-nervules very few, and the costal area with 

 four or five cross-nervules near the tip. Wings smoky-brown, with the 

 nervures darker; tergum more or less orange, shaded with fuscous. 



Length from tip of head to end of hemelytra, 8 to 8^ millimeters; 

 Width of pronotum, 2 millimeters; length of cephalic horn, 2^ milli- 

 meters. 



Collected in Texas by G. W. Belfrage. 



4. S. angustatus. New sp. 



More slender than either of the species described ; the hemelytra 

 almost flat above, hardly gibbous on the sides; head more or less orange- 

 yellow, with the face, sides of protuberance, and ridges of the front 

 brownish ; cephalic horn very short and narrow, but blunt at tip ; cra- 

 nium with two black, impressed dots between the eyes; rostrum reach- 

 ing to the end of the fourth ventral segment, yellow, black at tip, the 

 lobes behind the eyes with a small black dot. Pronotum with an arcu- 

 ated series of indented black points, the lateral margins obliquely 

 curved toward the head; pale, grooved, and brown behind the eyes, 

 and with the carinate edge whitish. Mesonotum varied with brown, 

 and with a series of black, indented points across it, the tegular pieces 

 a little confluently punctate; pleura washed with pale brown and flecked 

 with diirk brown; legs flecked with fuscous, the tibise with two or more 

 dark, l);ind-like shades ; hemelytra infuscated, moderately flat, the costal 

 margin very feebly arcuated, a broad longitudinal vitta extending to the 

 tip, a streak on the suture of the clavas, several coalescing spots running 



