60 
PRELIMINARY LIST 
(Gillette). 
Diplodus luridas Stal. 
Colo. (Uhler, 1 and 6). Colorado Springs, August 10th (Uhler, o). Manitou 
and Garden of the Gods, July 13th to 16th (Packard see Uhlei, 5). 
Fort Collins, July 4th; foot-hills five miles west of Fort 
Collins, June 30th (Gillette). 
Diplodus socius Uhl. 
Estes Park, July 16th (Gillette). 
Apiomerus fiaviventris H. Schf. 
Larva from a bush in Clear Creek Canon, near mouth of Beaver Brook 
Gulch, August 7th (Uhler, 5). Brown variety on foot hills at mouth of C lear 
Creek Canon, July 3d, in Garden of the Gods, and at Manitou, July 13th to 
15th (Packard—see Uhler, 5). 
Apiomerus pictipes H. Schf. 
Foot-hills eight miles south-west of Fort Collins, June 30th 
to July 12tli; Silverton, June 20tli (Gillette). 
Apiomerus spissipes Say. 
Colo. (Uhler, 1 and 6). Valley of Arkansas, near Canon City, August 11th 
(Uhler, 5). Colo. (Snow—see VanDuzee, 5). 
Apiomerus ventralis Say. 
Colo. (Gillette—see Osborn, 1). Estes Park (Snow—see VanDuzee, 5). 
Fort Collins, May 14th on alfalfa (Baker). Foot-hills five 
miles west of Fort Collins, March 12th to June 12th, 
Graymont, July 15th (Gillette). 
Pygolampis pectoralis Say. 
Fort Collins, April 6th under a board in edge of field 
(Baker). 
Spilalonius geniculatus Stal. 
Pueblo (John Lansing). 
Hygrotrechus remigis Say. 
Colo. (Uhler, 1). Mountains in July (Carpenter—see Uhler. 6). From water 
on plains of Southern Colorado, June to July (Carpenter—see Uhler, 7). On 
still water along margin of Sloan's Lake; very abundant on surface of 
irrigating canal proceeding from Canon of Arkansas, in August (Uhlei, 5). 
Denver, July 10th; Boulder, June 20th; Manitou, July 15th (Packard see 
Uhler, 5). 
Near Fort Collins and in the adjoining foot-hills, common 
