HEMIPTERA OF COLORADO. 
51 
Macrotylus moerens Uhl. 
Steamboat Springs, July 16th and 26th (Baker and 
Gillette). Spring Canon, June 30th; Estes Park, July 10th; 
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). 
Bpiscopus ornatus Rent. 
Colorado Springs, August 3d (Gillette). 
Plpgiognathus annulatus Uhler n. sp. 
“Closely related to P. arbustorum F., but narrower and smaller, brownisli-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 arched and with the edge obscure fulvous; tylus scarcely more prominent than 
the front, curved, highly polished; 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 the 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, doflexed; anterior angles a little rounded, 
oallous; 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 olf by a transverse series of punctures placed a little way back. 
•Cerium 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 
full mm. Described from one female specimen sent to me from Colorado. It inhabits 
also northern Illinois, Canada west, and New England. 
Steamboat SpriiigS; July 16th (Baker). 
Plagiognathus fratemiis 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-pice@us, the apical joint blackish; antennae 
