HEMIPTERA OF COLORADO. 
21 
Springs, August 18th (Uhler, 5). 
Fort Collins, March 20tli to August 25tli, and September 
27tli oil Bigelovia (Baber and Gillette). Foot-hills five miles 
west of Fort Collins, June 5th and 14th; Steamboat Springs, 
July 26th (Gillette). 
Corizus nigristernuni Sign. 
Golden, July 3d (Packard—see Uhler, 5) 
Rist Canon, June 13th (Gillette) 
Corizus punctiventris Uall. 
Colo. (Uhler, 1 and 6). 
Fort Collins, September 30th (Baker). Steamboat Springs, 
July 14th and 26th (Baker and Gillette). The Rustic, Larimer 
County, August 11th; Estes Park, July 12th; N^orth Park, 
July 20; Montrose, June 24th (Gillette). 
Corizus yaliclus Uhl. 
Steamboat Springs, July 14th (Baker). 
I/Optocoris trivittatiis Say. 
Colorado, common (Uhler, 1). Colo. (Uhler, B). Southern Colorado, July 
(Carpenter—see Uhler, 7). ('anon City, August 11th, at roots of cacti and 
yuccas (Uhler, 5). Colo. ( YanDuzee, 5). 
Canon City, August 31st (Gillette). Verj^ common in Fort 
Collins and vicinity. Hibernates in large numliers about 
buildings. Commonly called ‘‘brick-bugs” or “box-elder bugs,” 
although not found commonly on box-elder. 
Jadera haeuiatoloiiia H. Schf. 
Colo. (Uhler, B). . 
Nysius angustatus Uhl. 
Colo. (Uhler, 1). Above timber line in mountains of Colorado in June 
(Carpenter—see Uhler, B). Pueblo, July (Varrow and Wilkin seeLhler, 7). 
Fort Garland, July (Hunt—see Uhler, 7). Golden, July 3d (Packard see 
Uhler, 5). Very abundant on tall weeds in cultivated grounds, near Denver, 
at Golden, in Manitou Park, and near Canon City, August Bthto 18th (Uhler, 5) 
Colo. (Gillette—see Osborn, 1). 
■ Estes Park, July 12th; Leaclville, August 23cl (Gillette). 
Fort Collins, July 29th; Steamboat Springs, July 15th, on 
Solidago (Baker). Colorado Springs, Bear Creek Canon 
(Tucker). 
Nysius californicus Stal. 
('olo. (LTliler, 1 and B). Found sparingly on weeds in moist places, as well 
