HEMIPTERA OF COLORADO. 



89 



straight; lorae large, subovate, as long and one-half as broad as the clypeus; genae 

 anusually narrow, narrow below the lorae and attaining the tip of the clypeus. Front 

 two-ninths longer than wide, broad below, the superior angle more than a right angle. 

 Face and anterior third of vertex coarsely shagreened. Disc of vertex deeply depressed, 

 length at middle once and about two-thirds that next the eye, width between the eyes 

 once and a fiftli the length at middle. Pronotum two and one- 

 sixth times wider than long, length slightly less than that of the 

 vertex, curvature about one-half of the length, posteiior margin 

 slightly concave, anterior fourth glaljrous, posterior three-fourths 

 obscurely transversely wrinkled with scattered feeble punctures. 

 Scutellum finely scabrous. Last ventral segment with the hind 

 margin very broadly and deeply emarginated, tne eniargination 

 nearly rectangular at the bottom, posterior angles obliiiuely slop- 

 ing backward. Color ash gray, head and pronotum tinged with 

 rufous. Face black, clypeus with one median and two lateral 

 light spots, lorae with one median light spot, and genae with a 

 transverse light spot next the lorae. Front with about six short 

 transverse light lines on each side. Eyes black. Vertex with two 

 large black spots posteriorly, in front of these two smaller black 

 spots on either side, the anterior ones extending nearly to the 

 crest of the vertex, and a narrow median line not attaining 

 the apex. Pronotum dusky rufous. Scutellum with four large 

 black spots on the disc. Elytra scarcely exceeding the tip of the 

 abdomen, pattern of coloration the same as in bilineatus, white 

 spots at base very small. Venter dark, marked with yellowish. 

 Legs yellowish, coxae and basal half of anterior and middle 

 femora blackish, posterior femora with a longitudinal black stripe beneath. Tibiae 

 all dark with a longitudinal yellowish stripe on the outer margin. Tarsi blackish. 



Length 3 mm. Described from one female. Eeadily separated from weedi by the form 

 of the last ventral segment in the female. 



Leadville, August 23d (Gillette). 



Deltocephalus signatifrons VanD. Det. VanDuzee. 



Colorado (VanDuzee, 4). 



Fort Collins, July 2d on beans; Horsetooth Gulch, June 

 5th; Estes Park, July 12th; Steamboat Springs, July 26th; 

 Lamar, May 7th; Trinidad, May 14th; Montrose, June 24th 

 (Gillette). Fort Collins, May IGth on alfalfa; Steamboat 

 Springs, July 14th (Baker). 



Deltocephalus tinicoloratus n. sp. 



Female: Differs from the female of auratus as follows: Face one-twentieth longer 

 than wide; clypous nearly as wide as long and rapidly narrowing to the rounded tip; 

 front one-fifth longer than wide and two times as long as the clypeus. Vertex greatly 

 produced, the angle in front slightly less than 

 a right angle, once and two-thirds as long at 

 the middle as next the eyes, width between 

 the eyes the same as the length at tlie middle, 

 with a narrow black median line on the pos- 

 terior two-thirds. Ocelli jet black, margined 

 on the side towards the eyes by a small black 

 spot. Hind margin of last ventral segment 

 truncate with a median, sliglitly sunken, 

 obtuse tooth, the immediate region of the tooth thin and coriaceous, posterior angles 

 obtuse Color light lemon yellow. 



