48 
PRELIMINARY LIST 
Coquillettia insignis Uhl. 
Steamboat Springs, July 13th and 26th (Baker and 
Gillette). Fort Collins, August 11th (Baker). North Park, 
July 20th; Dolores, June 16th; Howe’s Gulch, June 14th 
(Gillette). 
/ 
Orthotylus viridicatus Uhler n. sp. 
“Oblong-ovate, grass green, opaque, minutely pubescent, pale green beneath. Head sliglitir 
convex, impunctate, broad between the eyes, the vertex transversely sulcate before the carina; 
the eyes brownish, moderately prominent, well rounded, placed nearly vertical; front convex, 
contracting below, the tylu's narrow, prominent, separated above by a deep groove; rostrum 
stout, reaching to the middle coxae, pale green at base, black on apical third ; antennae stout, 
the basal joint pale green, the second dusky, about equal to the clavus in length, the third and 
fourth joints dusky, more slender than the second, filiform, and together not as long as that 
joint. Pronotum wider than long, almost flat, with the lateral margins oblique, and the 
anterior angles a very little rounded, the callosities large and tumid, separated by a deep 
depression, the collum narrow, and confined to a narrow space of the anterior margin, tha 
transverse impressed line behind the callosities slender, but distinct on the outer margin, 
behind it the margin of the posterior lobe is distinctly reflexed, the margin before this callous; 
posterior margin nearly straight, with the humeral angles oblique and a little curved; the 
pleural flap is deep and nearly triangular. Scutellum little longer than wide, feebly convex, 
faintly carinate at tip. Clavus faintly scabrous, with a few obsolete punctures next the coarse 
vein, corium minutely and obsoletely scabrous, the cuneus pale yellowish, smooth; membrane 
black, with the veins pale yellowish. Abdomen short, minutely pubescent. 
Length to end of abdomen 3 mm. To tip of membrane 4 mm. Width of pronotum 1.25 mm. 
A few specimens of both sexes have been sent to me for examination. They have been mostly 
shriveled from immaturity at time of collecting. Three specimens are in the collection from 
Colorado. Others were obtained in the vicinity of Denver, and in New Mexico. The pale color 
of head, thorax, sides of corium and cuneus, is owing to fading of color after death of the 
insect.” 
North Park, July 20th; Dolores, June 18th; Trinidad, May 
14th; Estes Park, July 10th (Gillette). Steamboat Springs, 
July 16th and 26th (Baker and Gillette). 
Oncotylus guttulatus Uhl. 
Colorado Springs, August 3d (Gillette). 
Oncotylus longipennis Uhler n. sp. 
“Elongated, sub-elliptical, pale greenish testaceous, with along cuneate, dusky stripe on the 
middle of corium, polished, minutely pubescent. Head moderately convex, bald, highly 
polished, subconical, sometimes with a semicircle of blackish spots between the eyes; front- 
yellowish, the tylus narrow, black; the vertex with a high carina in the male and a trans¬ 
verse groove before it; eyes brown, large, prominent, placed a little obliquely; bucculae pale; 
rostrum slender, obscure testaceous, piceoUs at tip, reaching to the middle coxae; antennae 
long, moderately slender, black, the basal joint longer than the head, the second as long as the 
clavus, the third a little more slender, about two-thirds the length of the second, the fourth of 
the same thickness, much less than half the length of the third. Pronotum subtrapezoidal, 
polished, obsoletely wrinkled behind, feebly convex, the sides rapidly narrowing towards the 
front, and a little sinuated, causing the humeral angles to appear prominent, callosities dis¬ 
tinct, directly transverse, approximate, lateral edge decurved, the pleural flaps deep, subtri- 
angular, black on the middle. Legs greenish-testaceous, the femora with a black band near tip, 
and the knees, spines, tip of tibiae, and tarsi blackish. Prosternum each side, and pleura also, 
with a black stripe which continues back to the posterior segment; the venter eachside with.a 
series of diagonal black streaks. Scutellum feebly convex obsoletely wrinkled, usually black at 
