HEMIPTERA OF COLORADO. 



105 



ably wider than the liead, hind margin slightly concave. Transverse groove of scutellum 

 black. Hind margin of last ventral segment of female truncate. Color yellowish 

 green. Face sordid yellow, basal angles of the clypeus with an infuscated spot. Ver- 

 tex of the same colorasthe face, witli tiirec Indistinct longi udinal smoky bands, the 

 ocelli in light areas. Pronotum light yellowish green on the anterior and lateral margins, 

 darker green on the middle, two dark l^rown spots medially just back of the anterior 

 margin, the latter in some specimens entirely obsolete. Scutellum pale yf How, basal 

 angles darker. Elytra greenish subhyaline, slightly maculate with brown near the cla- 

 vus, somewhat smoky towards the tip. Tergum black with the apical margins of the 

 segments yellow. Venter yellow with the first two or three segments black at the base, 

 pygofers yellowish. Sternum black. Legs yellowish throughout, with infuscated lines 

 on the outside of the femora. • 



Length 3.75 mm. Described from seven females. 



Pleasant Valley seven miles north-west of Fort Collins, 

 June 12th; Estes Park, July 12th (Gillette). Steamboat 

 Springs, July 12th on Carex (Baker). 



We have a single female specimen which seems distinct from this species, but to which 

 at this time we hesitate giving a name. It differs as follows: The color more yellowish. 

 Pronotum distinctly less than twice broader than long. Length 4 mm. 



Estes Park, July 12th (Gillette). 



Gnathodus manitoii n. sp. 



Face finely shagreened, a seventh wider than long; clypeus nearly twice as long as 

 broad, rounded at the tip, slightly constricted before the base, basal suture strongly 

 curved; lorae nearly as long and three-fourths as broad as the clypeus; genae moder- 

 ately broad, rather deeply depressed beneath the eyes, outer 

 margin angularly incised below the eyes, sharply rounded 

 below, attaining the tip of the cliypeus; front one-half longer 

 than broad, twice as long as the clypeus, gradually narrowing 

 below, obtusely rounded above. Vertex one-half longer on the 

 middle than next the eyes, width between the eyes two and 

 one-half times the length at the middle. Pronotum five-sixths 

 broader than long, two and three-fifths times longer than the 

 vertex, curvature two-fifths of the length, posterior margin 

 very slightly concave, anteriorly smooth, posteriorly with 

 scattered feeble punctures, on the posterior median portion 

 finely obliquely rugose, the lines converging backwards. 

 Last ventral segment feebly rounded behind, nearly truncate, 

 pygofers with numerous stout hairs along the whole "ength. 

 Color pale green, unicolorous. Elytra hyaline. 

 Length 5 mm. Described from one female. 



Manitou, July (Tucker). 

 Cicadiila arcuata n. sp. 



Female: Face finely shagreened, one-sixth wider than long; clypeus one-half longer 

 than broad, sides parallel, rounded at tlie apex, basal suture curved; lorae three-fourths 

 as long and one-half as wide as the clypeus; genae moderately broad, somewhat depressed 

 beneath the eyes, outer margin angled above, straight below, attaining the tip of the 

 clypeus, moderately broad below the lorae; front one-fourth longer than broad, once and 



