94 PRELIMINARY LIST 



Acinopteras acuuiinatus YanD. Det. VanDuzee. 



Colorado (VanDuzee, 4). 



Steamboat Springs, July 26tli (Gillette). 



Bcaphoideiis iiuiuistiis Say. Det. VanDuzee. 



Fort Collins, August ISth, on black walnut (Baker). 

 Phlepsius cinerens VanD. Det. VanDuzee. 



Colorado (VanDuzee, 4). 



Fort Collins, August 25th (Baker). 

 Phlepsius exciiltus Uhl. 



Denver, August 18th; Pueblo (Uhler, o). Colorado (VanDuzee, 4). 

 Phlepsius irroratus Say. 



Suburbs of Denver and Valley of the Arkansas (Uhler, 5). 

 Phlepsius ovatus ^'anD. Det. VanDuzee. 



Colorado (VanDuzee, 4). 



Horsetootli Gulch, ten miles south-west of Fort Collins, 

 April 25th to May 18th; Rist Canon, eight miles north-west 

 of Fort Collins, June 13th; Dolores, May 18th (Gillette). 

 Fort Collins, October 7th; foot-hills five miles west of Fort 

 Collins, during the winter hibernating under stones (Baker). 

 Thatunotettix atridorsum VanD. Det. VanDuzee. 



Colorado (VanDuzee, 4). 



Spring Canon and Dixon's Canon, June 30th; Montrose, 

 June 24; Dolores, June 18th (Gillette). 



Thatunotettix belli Uhl. Det. VanDuzee. 



Manitou (Uhler, 5). Colorado (A'anDuzee, 4). 



Fort Collins, May 8th; Soldier Canon, five miles west of 

 Fort Collins, May 19th; Estes Park, July 11th; North Park, 

 July 20th; Steamboat Springs, July 26th; Trinidad, May 

 14th; Silverton, June 20th; Ouray, June 22d; Dolores, June 

 18th (Gillette). Fort Collins. May 18th to August ISth on 

 alfalfa and July 29th on cultivated beet; Horsetooth Gulch, 



genus in Can. Ent. XXV, p. 285, one division is stated as having "longer elytra with well 

 developed appendix." It would seem that in the former paper the genus is properly 

 characterized while, between those species which have elytra as long as abdomen or 

 longer and with a well developed appendix, such as anthracinus, bicolor, striatulus, 

 instabilis and obtutus, and some species of the genus Thamnotettix, we find no good 

 generic drlferences. 



