26 
COLORADO EXPERIMENT STATION. 
DELTOCEPHALUS BLANDUS, n. sp. 
Pearl gray, marked with cinnamon brown. Length 2J m. m. 
Vertex with a broad white median stripe divided by a brown line on 
the posterior two-thirds and bordered either side by a broader band 
of brown in which are two whitish spots, giving the brown color 
somewhat the shape or the letter B. Near the base of the vertex, 
either side of the white stripe, are two small deeply colored choco- 
late spots ; ocelli black. Face light cinnamon brown in color with 
about six irregular transverse pale lines, and about one-sixth longer 
than broad ; clypeus broadest at base and gradually narrowing to a 
rounded apex ; lorae whitish with a large central dark spot; genae 
whitish, black beneath the antennae and moderately broad at the 
clypeus. Pronotum pale yellowish green, faintly stained with choc- 
olate, slightly concave behind, lateral margins broadly rounded and 
two and one-fourth times as broad as long. Scutellum concolorous 
with pronotum, with the basal angles and two longitudinal parallel 
lines on the disc pale chocolate in color, transverse suture straight. 
Elytra attaining the posterior margin of the last abdominal seg- 
ment, pale ashy in color with a few of "the nervures bordered with 
pale brown. The tergum light brown, mottled with white along the 
median line, the basal portion of the {lygofers above deeper brown 
than the rest, shading into black on the anterior margin. Venter 
black on the middle and yellow at sides ; pygofers pale yellow 
stained with brown below ; ovipositor black, scarcely exceeding the 
pygofers ; last ventral segment with posterior angles produced and 
rounded and with a short blunt median tooth, the tooth and broad 
lateral margins of the segment white, the remaining portion black; 
feet pale yellow spotted and annulate with cinnamon brown. 
A very handsome sj)ecies described from two females taken by 
the writer, one at Fort Collins, September 21bt, and one at Calhan, 
October 7th, while sweeping native grass. 
DELTOCEPHALUS LABIATA, n. sp. 
Somewhat closely resembling D. argenteolus but differing 
in having a narrow and more acute vertex that is not at all de- 
pressed above. Length 3J m. m. 
Female: Vertex nearly flat but not depressed between the 
eyes, slightly sloping forward, conical at the apex, about one-fourth 
longer than the distance between the eyes, whitish to light lemon 
yellow in color, with light and brown pencilings on anterior third, 
ocelli fuscous or black. Front concolorous with vertex with about 
six more or less distinct dark cross lines, which are interrupted on 
the middle; clypeus long, lateral sutures straight, a little broadest 
at base, truncate at apex, extending about one-third of its length 
beyond the lorte ; gena3 ivory white with a black spot beneath the 
antenna), another beneath the middle of the eye, and a third very 
