182 OKTHOPTEKA. 



Rio Negro in Argentina. It is somewhat similar to our T. vinculata, both in appearance 

 and habits. 



12. Trimerotropis vinculata, Scudd. 



Trimerotropis vinculata, Scudd. Ent. Notes, v. p. 25 (1875-76) l ; Append. Rep. U.S. Ent. Comm. 



ii. p. 27, t. 17. fig. 11 (1880) 2 ; McNeill, Proc. U.S. Nat. Mus. xxiii. p. 439 (1901) \ 

 Trimerotropis cincta, Sauss. Prodr. GEdip. p. 171 (1884) 4 . 

 Trimerotropis fascicula, Rehn, Trans. Amer. Ent. Soc. xxvii. p. 227 (1905) 5 ; xxix. p. 11 (1902) \ 



Hal. North America, various localities from the Saskatchewan to the Mexican 

 boundary 1_6 . — Mexico, Chihuahua ( M. Kerr, L. Bruner). 



This is one of the commonest species of the genus, and seems to be very closely 

 related to the T. pallid ipennis, which occurs throughout the warmer parts of South 

 America, as well as in portions of Central America and Mexico. 



13. Trimerotropis cyaneipennis, Bruner. 



Trimerotropis cyaneipennis, Bruner, Proc. U.S. Nat. Mus. xii. p. 68 (1890) x ; Scudd. Cat. 

 Orthopt. U.S. p. 42 (1900) 2 ; McNeill, Proc. U.S. Nat. Mus. xxiii. p. 445 (1901) 3 . 



Hah. North America, Utah and Idaho to Arizona 1-3 . — Mexico, Colonia Garcia, 

 Chihuahua (C. H. T. Townsend). 



This insect appears to be partial to mountainous regions, where it occurs among 

 the talus at the foot of cliffs. It also frequents lava-beds in several sections of the 

 country *. 



* The following species of the genus Trimerotropis have heen taken in, or credited to, regions which 

 would permit of their being found south of the Mexican border: — 



T. cincta, Thomas, Proc. Acad. Nat. Sci. Philad. 1870, p. 80. — Texas, New Mexico, &c. 



T. laticincta, Sauss. Prodr. (Edip. p. 169 (1884). — New Mexico and Texas. 



T. rebellis, Sauss. Addit. Prodr. (Edip. p. 60 (1888).— California. 



T. ccerulapes, Scudd. Rep. U.S. Ent. Comm., Append, ii. p. 27 (1880). — California and Arizona. 



T. cceruleipennis, Bruner, Canad. Ent. xvii. p. 10 (1885). — Los Angeles, California. 



T. bifasciata, Bruner, Proc. U.S. Nat. Mus. xii. p. 70 (1890). — Southern California. 



T. thalassica, Bruner, loc. cit. p. 72. — California. 



T. modesta, Bruner, loc. cit. p. 72. — Silver City, New Mexico. 



T. pacifica, Bruner, loc. cit. p. 78. — Los Angeles, California. 



T. hyalina, McNeill, Proc. U.S. Nat. Mus. xxiii. p. 405 (1901).— California. 



T. cristata, McNeill, loc. cit. p. 408. — Los Angeles, California. 



T. porrecta, McNeill, loc. cit. p. 409. — California. 



T. coquilleiti, McNeill, loc. cit. p. 413. — California. 



T. tessellata, McNeill, loc. cit. p. 417. — Arizona. 



T. caliginosa, McNeill, loc. cit. p. 417. — Los Angeles, California. 



T. albescens, McNeill, loc. cit. p. 418. — Los Angeles, California. 



T. collaris, McNeill, loc. cit. p. 437. — San Jose del Cabo. Lower California. 



