HEMIPTERA OP COLORADO 45 



Fort Collins, June 24th; Montrose, June 24th (Gillette). 



Dioniniatiis congrex Uhl. 



Steamboat Springs, July 16th, on willow (Baker). 



Tiiponia stihnitida Uhler n. sp. 



"Whitish-green, long oval, minutely pubescent, with the costal margin of the hemelj'tra very 

 feebly curved. Head broad and very convex, pressed back upon the thorax, smooth, not 

 punctate; front nearly vertical, highly polished; the tylus short, compressed, but little promi- 

 nent, curved beneath ; the rostrum pale fulvous, reaching over the middle coxae, with the tip 

 piceous; antennae long and slender, the basal joint short, blackish, second joint green, dark at 

 base and tip, not much thicker than the following joint, about as long as from the front of the 

 eye to the base of prouQtum, the third a little sliorter and slightly more slender, the fourth 

 scarcely more than one-third the length of the third, equally slender. Pronotum transverse, 

 uneven, steep, very slightly convex, smooth, impunctate; with the callosities forming an arc, 

 preceded by a semicircular area touching the front margin ; the lateral margins very oblique, 

 sharp-edged and deflexed; the posterior margin sinuated at the base of the scutellum ; the 

 the humeral angles broad and rounded. Scutellum very moderately convex, the base uncovered, 

 the disk a little wrinkled and the tip acute. Legs greenish-white, the knees, tibial spines, dots 

 at intervals, and the tips of tarsi black. Corium and clavvis greenish-white, very minutely 

 scabrous, and remotely eff'ated-punctate ; membrane a little dusky behind the middle to the tip. 

 Abdomen pale green, minutely white pubescent. 



Length to end of abdomen 2.5 mm. To tip of membrane 3 mm. Width of i^ronotum 1.12 mm. 

 Described from two specimens from Colorado." 



Steamboat Springs, July r2th (Baker), 



Stiphrosoina atrata Uhl. 



Fort Collins, July 14th on alfalfa; Steamboat Springs, 

 July 1 2th on Carex and Artemisia triclentata (Baker). 



Stiphrosouia croceipes Uhl. 



Big Narrows of Pouclre river, Larimer County, July 9th on 

 Bigelovia (Baker). 



Stiphrosouia robiista Uhler n. sp. 



"Black, polislied, shorter, thicker, and more compact than S. stygica Say, with a more 

 convex front. Head thick, convex from the vertex to end of upper cheek, the vertex with a low 

 carina behind against the ijronotum, and marked with a shallow impression each side, front 

 highly polished impunctate, tylus narrowing a little towards tlje tip, deep seated in the cheeks ; 

 rostrum stout, a little piceous, reaching to the middle coxae ; antennae slender, black, about as 

 long as the liead, pronotum and scutellum united, the second joint nearly the same length as the 

 clavus, a little thicker towards the tip, the third more slender, nearly two-thirds the length of 

 the second, the fourth about one-half the length of the second. Pronotum pubescent on the 

 sides, with the lateral margins oblique and more bent down than in S. stygica, the surface 

 scabrous, obsoletely punctate and transversely wrinkled, the callosities large, convex placed 

 diagonally, and separated by a wide depression, the disk convex posteriorly, with the humeri 

 acutely prcyiiiuont. Pleura a little wrinkled and with a few punctures. Scutellum short, scab- 

 rous, a little punctate. Legs with stiff spines on both femora and tibiae. Clavus coarsely, 

 closely scabrous, and obsoletely piuictate, the corium a little less coarsely scabrous, and 

 punctate, but with these features almost obliterated behind the middle, the sides and margins 

 pubescent; membrane moderately short, brown. Abdomen broad ovate, highly polished, 

 scarcely punctate. 



Length to end of abdomen 4 mm. Width of pronotum 1.75 mm. Described from two 

 specimens, both females, sent to me from Colorado. It inhabits also Texas and Now Mexico." 



Steamboat Springs, July 26th (Gillette). 



