HEMIPTERA OF COLORADO. 
105 
ably wider than the head, 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 color as the face, with three 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 brown spots medially just back of the anterior 
margin, the latter in some specimens entirely obsolete. Scutellum pale y< llow, 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 manitou n. sp. 
Face finely sliagreened, 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 clypeus; front one-half longer 
than broad, twice as long as the clypeus, gradually narrowing 
below, obtusely rounded above. Vertex one-lialf 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 length. 
Color pale green, unicolorous. Elytra hyaline. 
Length 5 mm. Described from one female. 
Manitou, July (Tucker). 
Cicadula arcuata n. sp. 
Female: Face finely shagreened, one-sixth wider than long; clypeus one-half longer 
than broad, sides parallel, rounded at the 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 
