HEMIPTERA OF COLORADO. 85 



posterior angles subacute and somewhat inclined towards tlie center. Color pale ashy 

 green. Face slightly dusky with indistinct lighter transverse lines above. Genae with a 

 small black spot near the loral suture. Vertex and pronotum concolorous, with a broad 

 light median stripe and a dark stripe on either side, on the vertex the median light stripe 

 ■with a median dark line. Scutellum darker on the disc. Elytra ashy subhyaline with a 

 few faint fuscous markings a'.ong the middle of the disc and on the median portion of the 

 clavus. Venter pale yellowish. Legs pale yellow. 



Length 3.35 mm. Described from one female. Related to melsheimeri. 



Leadville, August 23d (Gillette). 



We have also a single male which probably belongs to this species. It ditt'er^ from 

 the female as follows: Front one-fourth longer than wide, two and a half times as long 

 •as the clypeus. Face darker on discs of clypeus and genae, front very light chocolate 

 brown, the light transverse lines above distinct. Elytra with costa and veins more dis- 

 tinctly yellowish, the apical cells faintly margined with fuscous. Venter black. Legs as 

 In monticola. 



Length 3.5 ram. Described from one male. 



Estes Park, July 12th (Gillette). 



Deltocephalus argenteolus Uhl. 



Quite common on willows at Colorado Springs and near Manitou fUhler, 

 5). Colorado (Vanl)uzee, 4). 



Deltocephalus auratus n. sp. 



Female: Face an eleventh wider than long. Clypeus about a third longer than wide, 

 gradually narrowed to the rounded apex. Lorae subovate, as long as the clypeus and 

 half as broad. Genae broadly and very obtusely angled, attaining the end of the clypeus. 

 Front one-eighth longer than wide, about two times 

 the length of the clypeus, sides nearly straight, 

 rapidly narrowing to the clypeus below, superior 

 angle rather strongly produced and rather more 

 than a right angle. Face and anterior third of ver- 

 tex finely shagreened. Disc of vertex with a de 

 pressed area on either side next the compound eye, 

 length at middle once and a half that next the eye, 

 "width between eyes once and a seventh times the 

 length at middle. Pronotum twice wider than long, 

 as long as vertex, curvature two-thirds of length, 

 ■with the glabrous anterior margin somewhat 

 elevated, posterior margin slightly concave, pos- 

 terior three-fourths obscurely rugose and sparsely 

 and indistinctly punctate. Scutallum broader than long, very minutely sculptured. 

 Last ventral segment with the hind margin deeply and broadly notched, posterior angles 

 rounded. Color pale yellow throughout. Tip of rostrum, eyes, spots at bases of tibial 

 spines, and ungues, black. Ocelli rufous. Elytra exceeding abdomen by somewhat less 

 than one millimeter, yellowish subhyaline, nervures lighter. 



Male: Differs from female as follows:— Color deep golden yellow. Elytra yellowish 

 subhyaline, nervures and costa bright yellow. Genital organs below tipped with black. 



Length 3.25 mm. Described from two males and one female. 



Fort Collins, June 14th (Gillette). Steamboat Springs, 

 July 15th (Gillette). 



Deltocephalus hilineatus n. sp. 



Face a twelfth wider than long: clypeus long and narrow, one-half longer than broad, 

 nearly one-half as long as the front, sides parallel, apex rounded, basal suture straight; 

 lorae subovate, nearly as broad and long as the clypeus; genae very broadly and obtusely 

 angled outwardly, attaining the end of the clypeus; front two-fifths longer than wide, 



