HEMIPTERA OF COLORADO. 43 



Cyrlorrhiniis marginatus Uhler n sp. 



"Long and narrow, black, moderately flat ab*ve, pale pubescent, bordered with green 

 on the abdomen and corium. Head black, highly polished, much wider than the front of 

 pronotum, indented and grooved in front of the carina of vertex, the carina sharp and 

 high; face almost vertical, the tylus prominent; eyes large, brown, prominent, placed a 

 little obliquely, tlie border of their inner side pale yellowish; tylus, bucculae, and 

 rostrum greenish-testaceous, the latter reaching upon the middle coxae, blackish at tip; 

 antennae moderately stout, as long as the liead, pronotum and corium united, the basal 

 joint much longer tlian the head and stouter tlian the second, ilie second joint as long as 

 the clavus, the third more slender and about half as long as the second, the fourth still 

 more slender and much shorter. Pronotum sliiiing black, sometimes with a yellow line, 

 the sides gradually contracting, rather strongly sinuated, the callosities large and 

 prominent, the surface transversely wrinkled, convex posteriorly, longitudinally 

 impressed near the humeri, the margin sometimes broadly yellow. Legs pale greenish, 

 the tibiae dark at tip, tlie anterior pair witli stout spines, tarsi piceous at tip. Scutellum 

 black, moderately convex, transversely wrinlvled, acute and pale at tip. Clavus dull 

 black minutely pubescent, corium duU lilack as far as next to the cuneus, also puljescent, 

 broadly margined with greenish yellow, the cuneus mostly yellowish, the surface of the 

 hemelytra granulate throughout; membrane long, smoke brown, with the veins pale 

 yellow at tip. Middle line of the sternum and disk of venter pale greenish-yellow, finely 

 pubescent. 



Length to tip of abdomen 4 mm Width of pronotum 1.25 mm. Only males of this 

 insect have been brought to my notice. Should tiie female prove to be of the inflated 

 type, witli tlie splierical head, tliis insect will have to be transferred to the genus Globi- 

 ceps Fiebr. Tliis species is common in the province of Quebec, and it (>ccurs as far north 

 as Great Slave Lake, in British America." 



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



Diaphnidia Uhler n. gen. 



'"Near Actorhinus Fab., elongate subelliptical, tender, opaque. Head gently sloping and 

 curved anteriorly, the face almost vertical, a little longer than the width between the eyes ; 

 tylus projecting beyond the line of the face, curving beneath, the upper bounding line placed 

 nearly on the level of the lower end of eyes; eyes prominent, sub-reniform, nearly vertical, with 

 somewhat swollen nock behind tlieir line; occiput with a carina sometimes arched in the 

 middle, and witli the surface flattened in front of it, cheeks diagonal, acutply narrowed at tip; 

 gula almost horizontal, swollen at base; bucculae narrow and short, followed behind by a 

 waved surface, basal joint of rostrum mucJi shorter than the under side of liead ; antennae 

 longer than the head, pronotum and corium united. Lens long. Pronotum trapeziform, with 

 the lateral margins moderately oblique, the anterior margin forming a narrow, flat, sinuated 

 collum ; the transverse impressed line behind the callosities shallow. Hemelytra long and 

 wide, contractingly curving towards the base, semi-diaphanous, with a sliaroly refleaed costal 

 margin ; cuneus large and long, with the outer border roflexoJ. Abdomen very narrow." 



Diaphnidia dehilis I'hler n sp. 



"D.^licate green, or greenish-white, indistinctly and very minutely pubasient around the 

 sides of head, pronotum and beneath. Head a little grooved on the middle line, and a little 

 callous each side between the eyes ; antennae yellowish, the basal joint much longer than the 

 head, thicker than tlie second joint and contracted at base, tlie second of uniform thick- 

 ness throughout, as long as the outer margin of the corium; rostrum yellowish, black at tip, 

 reaching between the anterior coxae. Pronotum wider than long, almost flat on the disk, 

 gently sloping, with the surface a little wrinkled, the lateral margins a little sinuated in front 

 of the prominent iiumeri ; the anterior submargin occupied by the transverse ridge of the almost 

 contiguous callosities. Legs pale green, more yellow upon the tibiae, upon which the spines are 

 dark, and the base and apex of the tarsi piceous. Clavus, corium and cuneus minutely, 

 remotely and obsoletely scabrous. Abdomen silvery greenish. 



Length to end of abdomen 3 33 mm. To tip of membrane 5.5 mm. Width of pronotum 

 1.5 mm. Two males from Colorado are the only specimens 1 have seen." 



Steamboat Springs, July 14th (Baker). Later we also 



