HEMIPTERA OF COLORADO. 51 



Macrotyliis moerens Uhl. 



Steamboat Springs, July l()th and 26tli (Baker and 

 Gillette). Spring Canon, June 30tli; Estes Park, July lOtli; 

 North Park, July 20th; Manitou, June 25th (Gillette). 



Macrotylus verticalis Uhl. 



Montrose, June 24th (Gillette). 



Bolteria picta Uhl. 



North Park, July 20th; Leadville, August 23d (Gillette). 

 On Grizzly Creek, in mountains south-west of North Park, 

 July 10th, on Artemisia tridentata; Steamboat Springs, July 

 12th (Baker). 



J^piscopus ornatiis Reut. 



Colorado Springs, August 3d (Gillette). 



Plpgiognathiis aninilatus Uhler n. sp. 



"Clo!:ely related to P. arbustorum F., but narrower and smaller, brownLsh-blaCK, long- 

 oval, polished, with pal ■ yellow legs, having the femora streaked and the tibiae annu- 

 lated or spotted with black. Head longer than wide, acute in front, convex, highly 

 polished, faintly tinged with brown; vertex concurrently convex with the front; the 

 occiput arclied and with the edge obscure fulvous; tylus scarcely more prominent than 

 the front, curved, highly polislied; rostrum reaching to the middle coxae, yellow, with 

 the basal joint black and the apex piceous; antennae of medium length, the basal joint 

 ■black, scarcely longer than the head, the second yellow in the middle, or nearly all yellow 

 "but the base, a little longer than from tlie front of the eye to the base of pronotum, third 

 and fourth more slender, yellow. Pronotum deep black, highly polished, growing much 

 narrower anteriorly, minutely, irregularly and obsoletely rugose, more convex posteri- 

 orly; the callosities large, very slightly prominent, with an indented space between, and 

 a wavy impressed line forming the boundary between them; the lateral margins oblique, 

 barely sinuated with the edge a little keeled, deflexed; anterior angles a little rounded, 

 callous; posterior margin gently arcuated; the humeri prominent, almost acute, with an 

 impression bounding them inwardly. Scutellum feebly convex, a little unevenly rugu- 

 lose, the tip acute and set off by a transverse series of punctures placed a little way back. 

 Carium deep black, long, highly polished, obsoletely and irregularly rugose over most of 

 the surface, with some punctures on the depressed borders; the clavus obsoletely and 

 coarsely rugose, with series of shallow punctures on the sutures; base of cuneus marked 

 by an obscurely pale sutural line; the outer angle of base of membrane marked by a 

 triangular white spot, remainder of membrane fuliginous black. Legs pale yellow, the 

 base of anterior coxae, the knees, rings and spines of tibiae and the tarsi black. 



Length to end of abdomen 3.5 mm. To tip of membrane 4 mm. Width of pronotum 1 

 lull mm. Described from one female specimen sent to me from Colorado. It inhabits 

 also northern Illinois, Canada west, and New England." 



Steamboat Springs, July 16th (Baker). 



Plagiognathus fraterniis Uhler n. sp. 



"Larger and more flat above than P. obscurus Uhler, color black, minutely sericeous 

 pubescent. Head triangular, a little longer than wide, acute at tip, with the sides a little 

 sinuated; occipital carina indistinct, pale yellow, front convex, a little roughened on the 

 middle; the tylus prominent, highly polished, comparatively narrow, a little curved; 

 rostrum reaching upon the middle coxae, basal joint stout, a little longer than the throat, 

 ■blackish-piceous, the middle joints fulvo-piceeus, the apical joint blackish; antennae 



