NO. 1333. NOTES ON ORTHOPTERA—CAVDELL. 793 



The posterior tibitB of thi.s species vaiy in color from vellow to dis- 

 tinctly blue. The type, according- to McNoili, should be in the collec- 

 tion of the National Museum l)ut can not now be found. 



72. TRIMEROTROPIS SIMILIS Scudder. 



Tri)iierotr(>plx ai mill fi Hcvmmii, Rept. IL S. Eiit. Coiiini., II, a.\>\>., 1881, p. 27. 



Ten males, three females, Platte Canyon May -2'^: Vuw Gi-ovc dulv 

 8; Palisades July S; Salida August 6; (lolden July U; C'hinniey (iulch 

 Jul}'^ 27; Morrison June 27. 



All these specimens were taken in the foothill fauna, and they do 

 not seem to occur on the prairie. There is some variation in the 

 i elytral bands, some specimens having- them much more contrasted than 

 I others. 



73. TRIMEROTROPIS VINCULATA Scudder. 

 Trimerotrrrpix viDCulata ^cvDimR, Proc. BoHt. Soc. Nat. Hist., XV HI, 187f), p. 270. 



i Twentv males, fifteen females, Platte Canj^on May 25 and Jul}' 10; 

 ! Sedalia July II; Montrose August 17; Montevista August 13; Salida 



August 6; Palisades July S; Delta July 9; Fort Collins Augu.st 1); 



Denver June 21: and Grand Junction Jidy 7. 



74. CIRCOTETTIX AZURESCENS Bruner. 



TrimerolropiKozurescevs Bruner, Proc. U. S. Nat. Mut^., XII, 1890, pp. 09-70. 

 Tmnerutropix perplexa Bruner, Proc. U. S. Nat. Mus., XII, 1890, pp. 74-75. 



One male. Montrose August 17; one female, Fort Collins August lo. 



This is a true circotittix, the radials of the wings being distinctly 

 swollen. The above synonymy is based upon a study of type speci- 

 mens. 



75. CIRCOTETTIX CARLINIANUS Thomas. 



(Edipoda (■((rliiiiaiiiis Thomas, Proc. Acad. Nat. Sci. Philad., 1S70, j). 81. 



Six males, eight females, Fort Collins August 1<); one male, Morri- 

 son June 29. 



One of the male specimens has the hyaline portion of tlic wings 

 extending quite to the base in the anterior and middle tields. 



76. CIRCOTETTIX SUFFUSUS Scudder. 



Trimerotripiif finfiiKus ^CVBDER, Bull. U. S. Geol. Surv. Terr., II, 1870, p. 265. 

 Trlmerotropis coliitidda ScvTtDER, Rept. Ent. Soc. Ont., XXI II. 189:>, p. 77. 



Three males, one female, Chama, New Mexico August 11. 



77. CIRCOTETTIX UNDULATUS Thomas. 



(Edipoda niididatax Thoma.s, Ann. Rept. U. S. (tcoI. Sniv. Terr., V, 187 1, p. 4(i0. 



Twenty-six males, twenty females. Chimney (iulcli dune i:»: lxiik\vs 



July 1P>; Pine Grove July 18 and 27; Golden, in foothills, duly 27; 



