HEMIPTERA OF COLORADO. 
straight; lorae large, suhovate, as long and one-half as hroad as the clypeus; genae 
unusually narrow, narrow helow the lorae and attaining the tip of the clypeus. Front 
two-ninths longer than wide, hroad 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 fifth 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 glabrous, 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 emargination 
nearly rectangular at the bottom, posterior angles obliquely 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 2 mm. Described from one female. Readily separated from weed! by the form 
of the last ventral segment in the female. 
Leadville, August 23d (Gillette). 
Deltocephalus signatifrons A"anD. Det. VanDuzee. 
Colorado (A^anDiizee, 4). 
Fort Collins, * July 2d on beans; Horsetootli Gulch, June 
5tli; Estes Park, July 12th; Steamboat Springs, July 26th; 
Lamar, May 7th; Trinidad, May 14th; Montrose, June 24th 
(Gillette). Fort Collins, May 16th on alfalfa; Steamboat 
Springs, July 14th (Baker). 
Deltocephalus unicoloratiis n. sp. 
Female- Differs from the female of auratus as follows: Face one-twentieth longer 
than wide; clypeus 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 the 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, slightly sunken, 
obtuse tooth, the immediate region of the tooth thin and coriaceous, posterior angles 
Ob'" use Color light lemon yellow. 
