102 
PRELIMINARY LIST 
Male: Differs from the female as follows:—Generally darker colored. Basal joint of 
antennae distinctly margined internally with black. Vertex more strongly depressed. 
Elytra with veins dark brown. Venter black with tips of segments yellowish. Plates 
yellowish brown streaked with black. Black spots on tibiae larger. 
Length of female 6-6.6 mm, of male 6 mm. Described from seven females and one male. 
Glenwood Springs, August 24th; Manitou, September 29tli 
on oak (Gillette). 
lE^iitettix seminttda Say. 
Montrose, June 24th; Fort Collins, September 11th on 
apple (Gillette). 
Mutettix terebrans n. sp. 
Face one-eighth wider than long; clypeus one-sixth longer than broad, narrowing to 
a truncate apex, deeply transversely depressed near the apex and broadly and shallowly 
depressed near the base, the lateral margins curved; lorae as long and one-half as broad 
as the clypeus; genae slightly depressed near 
the eyes and toward the lorae, outer margin 
rounded, strongly margined, and slightly ex¬ 
ceeding the clypeus; front scarcely longer 
than broad, once and four-fifths the length 
of the clypeus, gradually narrowing to near 
the clypeus, superior angle obtusely rounded. 
Face and anterior third of vertex coarsely 
shagreened with scattering shallow punc¬ 
tures. Disc of the vertex with a small de¬ 
pression at the tip and a broad transverse 
depression before the tip and between the 
compound eyes, length at the middle once 
and a fourth that next the eyes, width be¬ 
tween the eyes once and a half the length at 
the middle. Pronotum considerably more 
than twice as broad as long, length once and 
a fourth that of the vertex, curvature about 
one-half of the length, shagreened on the an¬ 
terior third, transversely wrinkled on the 
posterior two-thirds, posterior margin slight¬ 
ly concave. Scutellum coarsely shagreened, slightly shorter than the pronotum. Last 
ventral segment with the hind margin broadly and very deeply notched, the notch with a 
short, strong, rounded tooth at the center, the lateral angles produced and subacute. 
Ovipositor extremely long, as long as the body back of the head, exceeding the pygofersby 
about 1 mm., and the wings by .3 mm. Color tawny yellow. Face light brownish yellow, 
about six transverse dark dashes on either side of the front; genae with a dark spot below 
the eyes and a dark point near the lorae. Vertex with a large rectangular spot either 
side next the eyes and a smaller one at the apex, the sunken pit just back of this spot 
blackish, and about four indistinct infuscated spots between the eyes near the hind 
margin. Pronotum with two small transverse black spots near the median line and abaut 
one-third of the length bacK of the front margin, back of the compound eyes on either 
side are about six small black spots, back of these spots the disc is brownish yellow. 
Scutellum yellowish, transverse groove black. Elytra yellowish subhyaline. Tergum 
yellowish with six longitudinal black bands. Venter yellowish with basal segment black. 
Pygofers yellow streaked with black, valves yellow on the lower margins, black at the 
sides. Legs dirty yellow, tibial spines brown, tips of tarsi infuscate. Propleura with a 
black spot. 
Length 4.75 mm. Described from one female. This unique form introduces a very 
novel element into the genus Eutettix. 
North Park, July 20th (Gillette). 
