HEMIPTERA OF COLORADO. 
21 
Springs, August 18th (Uhler, 5). 
Fort Collins, March 20th to August 25th, and September 
27th on Bigelovia (Baker and Gillette). Foot-hills five miles 
west of Fort Collins, June 5th and 14th; Steamboat Springs, 
July 26th (Gillette). 
Corizus nigristernum Sign. 
Golden, July 3d (Packard—see Uhler, 5). 
Rist Canon, June 13th (Gillette). 
Corizus punctiventris Dali. 
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; North Park, 
July 20; Montrose, June 24th (Gillette). 
Corizus validus Uhl. 
Steamboat Springs, July 14th (Baker). 
Leptocoris trivittatus Say. 
Colorado, common (Uhler, 1). Colo. (Uhler, 6). Southern Colorado, July 
(Carpenter—see Uhler, 7). Canon City, August 11th, at roots of cacti and 
yuccas (Uhler, 5). Colo. (VanDuzee, 5). 
Canon City, August 31st (Gillette). Very common in Fort 
Collins and vicinity. Hibernates in large numbers about 
buildings. Commonly called “brick-bugs” or “box-elder bugs,” 
although not found commonly on box-elder. 
Jadera haematoloma H. Schf. 
Colo. (Uhler, 6). 
Nysius angustatus Uhl. 
Colo. (Uhler, 1). Above timber line in mountains of Colorado in June 
(Carpenter—see Uhler, 6). Pueblo, July (Yarrow and Wilkin—see Uhler, 7). 
Port Garland, July (Hunt—see Uhler, 7). Golden, July 3d (Packard—see 
Uhler, 5). Very abundant on taty weeds in cultivated grounds, near Denver, 
at Golden, in Manitou Park, and near Canon City, August 6th to 18th (Uhler, 5). 
Colo. (Gillette—see Osborn, 1). 
Estes Park, July 12th; Leadville, August 23d (Gillette). 
Fort Collins, July 29th; Steamboat Springs, July 15th, on 
Solidago (Baker). Colorado Springs, Bear Creek Canon 
(Tucker). 
Nysius californicns Stal. 
Colo. (Uhler, 1 and 6). Pound sparingly on weeds in moist places, as well 
