22 
PRELIMINARY LIST 
on the plains as in canons and parks. Swept from flowers west of Denver, in 
Clear Creek Canon, near Manitou and Colorado Springs, and more abundantly 
near Canon City. On a low composite with pale whitish flower, Manitou Park, 
August 14th (Uhler, 5). Golden, July 3d (Packard—see Uhler, 5). 
Nysius minutus Uhler n. sp. 
“Grayish fulvo-testaceous, pubescent, punctate with black, narrow, with the outer 
margin of the hemelytra nearly straight. Head of medium length, comparatively acute, 
pale dull fulvous, closely punctate, except on the immediate base, the punctures of the 
sides especially black, a grooved line midway between the eye and tylus; throat black, 
covered with small punctures, sericeous pubescent., with a white line next the eyes; 
antennae fulvo-testaceous, the basal joint mostly black, reaching a little beyond the tip 
of tylus, second joint about one-third longer than the third and both piceous at tip, the 
fourth long blackish; rostum reaching behind the middle coxae, blackish piceous, some¬ 
times paler at base. Pronotum subquadrate, a little wider than long, coarsely punctate 
with black, especially on the sides of disk, the fulvous color of the middle of the head 
carried back as a line between the callosities, the callosities and adjoining sutures and a 
line each side of the convex posterior lobe black, the humeral callosities and a short line 
on the middle of the posterior border whitish, humeri nearly surrounded by black. 
Pectoral areas black, minutely sericeous pubescent, coarsely punctate anteriorly, with a 
series of large white spots, including the coxae, extending from behind the throat to the 
metapleura, the outer angle and posterior margin of the metapleura and collar next the 
throat whitish or white, legs dull fulvo-testaceous, the formora mostly black beneath. 
Scutellum fulvo-testaceous, coarsely punctate and with a black mark on each basal 
angle, the middle line black, including the blunt base of the middle carina, which 
becomes very slender on the depressed apex of the scutellum. Hemelytra whitish, 
minutely pubescent, obsoletely and minutely punctate, with the veins and inner and 
posterior margin interruptedly streaked with brown, the apex of the clavus with a 
brown dot; membrane long, whitish hyaline, with a few brown flecks near the middle and 
from thence outwards. Abdomen piceous or blackish, narrow, polished, closely covered 
with fine white pubescence. Length to tip of abdomen, male 3-3.5 mm. Width of 
pronotum, .75 mm. 
This is a common species in many parts of the western states, from Dakota to Colorado, 
California and Texas. On the eastern side of the continent it inhabits Canada, New 
England, New York, New Jersey, Maryland, Virginia, and North Carolina.” 
Fort Collins, June 4th to October 15th, and September 27th 
on Bigelovia; Pleasant Valley, June 12th; The Rustic, Lari¬ 
mer County, August 11th; Estes Park, July 12th; Grand 
Junction, August 26th, on sugar beets; Colorado Springs, 
August 3d; Montrose, June 24th (Gillette). Steamboat 
Springs, July 14th; Fort Collins, July 29tli, on sugar beets, 
and July 26th, very injuriously abundant on mustard 
(Baker). 
Nysius thymi Wolff. 
Estes Park, July 12th (Gillette). 
Orsillus scolopax Say. 
Fort Collins, August 11th, on Glycyrrhiza lepidota (Baker). 
Isclinorhynchus clidyiniis Zett. 
Southern Colorado (Yarrow—see Uhler, 7). Denver and Canon City (Uhler, 
