79'2 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvi. 



67. TRIMEROTROPIS GRACILIS Thomas. 



Oedipoda gracilis TnoM AS, Ann. Rept. U. S. Geol. Surv. Terr., V, 1871, p. 461. 

 Derotmema lichenosum. Scuduer, Proc. Amer. Acad. Arts Sci., XXXV, 1900, pp. 

 394-395. 



Kio-ht males, four females, Durango August 15. 

 The color of this insect makes it almost invisible when at rest on tlie 

 naked ground. 



68. TRIMEROTROPIS LATICINCTA Saussure. 

 7)-i nwrotropis hUidncta Savssvre, Prodr. (Edip., 1SS4, pp. 169, 170. 



Two males, three females. Fort Collins August 19; one male, two 

 females, Montrose August 13; one male, (irand Junction August 17; 

 two femak's, Denver Jul3^16; one female, Baileys July 30; two males. 

 Golden August 21. 



The males are somewhat variable in size, the measurements of the 

 elvtra ranging from 24 to 29 mm. It was quite unexpected to tind 

 this species .so common and widely distributed. By the table given by 

 McNeill these specimens run very persistently to this species. 



69. TRIMEROTROPIS MODESTA Bruner. 



Trhncrotropis tiiodesta Brcner, Proc. U. S. Nat. Mus., XII, 1890, p. 72. 



Six males, two females, Durango August 13; and Golden Jul}" 27. 



The type of this species has the elytral l>ands quite distinct, decid- 

 edly more so than the greater number of specimens. At Golden it 

 occurr(Hl up in the gulch in the foothill fauna. This is the first rec- 

 ord of its occurrence east of the Rocky Mountains. 



70. TRIMEROTROPIS MONTICOLA Saussure. 



Triinerotropis inontirola Saussure, Prodr. CKdip., 1884, p. 170. 



Seven males, five females. Cripple Creek July 26; Bailej^s July 13; 

 Golden June 17 and July 27; Pikes Peak July 21; Denver July 22. 



One of the females from Baileys has the black transverse band of 

 the wing scarcely one-sixth as broad as the length of the wing and 

 interrupted along the first anal vein. This specimen is also smaller 

 than usual, the elytra measuring 25 rtim. and the posterior femora 12 

 nun. All the specimens are from the foothill fauna except those f I'om 

 Denver. These Denver specimens, however, agree perfectly with 

 specimens froiu Pikes Peak and other high altitudes. 



71. TRIMEROTROPIS PSEUDOFASCIATA Scudder. 

 Tnmrro1ropis))sendofasciuta ScvvDEii, Ann. Kept. Chief Eng., 1876, p. 514. 



Eight males, four females. Chimney Gulch July 27; Pine Grove 

 July 23; Salida August 1; Durango August 15. 



