16 
PRELIMINARY LIST 
Pentatoma sayi Stal. 
Roaring Fork (Rothrock—see Uhler, 2). Foot-hills of Colorado, September 
(Carpenter—see Uhler, 6). Golden, August 6th (Uhler, 5). 
Silverton (Nat. Mus. Coll). 
Pentatoma uhleri Stal. 
Colo. (Uhler, 6). 
Carpocoris lynx Fab. 
Fort Collins, June 20th to October; Estes Park, July 11th* 
Colorado Springs, August 1st (Gillette). Steamboat Springs, 
July 12th to 26th (Gillette and Baker). 
Tricliopepla atricornis Stal. 
North-east of Denver, August 18th (Uhler, 5). 
Tricliopepla semivittata Say. 
On weeds in vicinity of Arkansas River, August 10th (Uhler, 5). 
Peribalns limbolarius Stal. 
Colo. (Uhler, 1 and 5) Nymphs moderately common on several kinds of 
Flowering plants August 6th and 8th, in Beaver Brook Gulch and Clear 
Creek Canon. A few days later imagos taken near Colorado Springs and at 
Manitou. August 11th taken sweeping plants in mouth of Arkansas Canon 
(Uhler, 5). Colo. (Gillette—see Osborn, 1). 
Steamboat Springs July 12th (Baker). Bailey (Snow). 
Yeta Pass, June 24th (E. A. Schwarz). 
Peribalns piceus Stal. 
Rist Canon, July 30th (Gillette) 
Holcostethus abbreviatus Uhl. 
Colo. (LThler, 1). Beaver Brook Gulch, August 6th (LThler, 5). 
Fort Collins, June 5th to October 7th (Gillette and Baker). 
Steamboat Springs, July 26th (Gillette . Rist Canon 
(Baker). 
Tliyanta custator Fab. 
Colo. (Uhler, 6). Near Manitou, August 16th (Uhler, 3). Colo. (Gillette— 
see Osborn, 1). 
Fort Collins, June 21st to October, (Baker and Gillette). 
Spring Canon, June 30th; Denver, July 20th; Lamar, May 
7th (Gillette). Colorado Springs, Garden of the Gods 
(Tucker). 
Tliyanta perditor Fab. 
Colo. (Uhler, 6). Pueblo, August 10th (Uhler, 5). Colorado, common 
(Uhler, 8). 
