58 
PRELIMINARY LIST 
Aradus americanus Fab, 
Colo. (Carpenter, 1). 
Hist Canon, May *29th (Gillette). 
Aradus debilis Uhl. 
Colo. (Gillette—see Osborn, 1). 
Aradus obliquus Uhl. 
Rist Canon, April 9th (Baker). 
Aradus rectus Say. 
Colo. (Uhler, 1 and 6). From mountains nsar Baivar Brook Gulch, 
August 6th (Uhler, 5). Colo. (Gillette—see Osborn 1). 
Fort Collins. August 19th; Steamboat Springs, July 26th; 
Montrose, June 24th; Dolores, June 18th (Gillette). 
Aradus tuberculifer Kirb. 
Colo. (Uhler, 6). Far up Beaver Brook Gulch, August 6th (Uhler, 5). Near 
Idaho Springs, July 6th (Packard—see Uhler, 5). 
Pliymata fasciata Gray 
Colo. (Uhler, 1). Widely distributed over the west. Common around foot¬ 
hills and on plains wherever land is cultivated. Generally found on stems of 
Euphorbias and sun-flowers (Uhler, 5). Colo. ^Uhler, 8). 
Rist Canon, August 10th (C. E. Pennock). Foot-hills five 
miles west of Fort Collins, September 1st (Gillette). Boulder, 
September 4th (Baker). Colorado Springs (Tucker). 
Coriscus ferns Linn. 
Colo. (Uhler, 6). Colorado Springs, June (Yarrow- see Uhler, 7'. Southern 
Colorado June to July (Carpenter—see Uhler, 7). Widely distributed on 
plains and in mountains and foot-hills, especially in settled portions. In damp 
situations in Beaver Brook Gulch, Clear Creek Canon, in Denver and around 
it at the lower levels, in the region of Colorado Springs and Manitou, near 
Canon City, and in the valley of the Arkansas, it is quite common in August 
(Uhler, 5). Denver, June 27th (Packard—see Uhler, 5). Ula, Custer County, 
November 12th; West Cliff (Cockerell, 10). Colo. (Gillette—see Osborn, 1). 
Fort Collins, September 27th, on Bigelovia and Rhus 
trilobata, and October 7th (Baker and Gillette). Colorado 
Springs, Green Mountain Falls (Tucker). 
Coriscus inscriptus Kirb. 
Colo. (Uhler, 1). August 14th, Nathrop, Chaffee County (Cockerell, 3). 
West Cliff, Custer County, July 27th; also subalpine; also in Chaffee, Gunnison, 
and Pueblo Counties (Cockerell, 10). 
