AMERICAN ORTHOPTERA. :• 



Otis W. Barrett (1). Cuernavaca, Morelos, Mexico. November. 

 Collected by Otis W. Barrett (1). 



Truxalis brevicornis (Johannson). 



1763, Gryllus brevicornis Johannson, Amcen. Acad., vi, p. 398. 



One female ; Escondido River, fifty miles from Bluefields, Nica- 

 ragua. September 21, 1892. Collected by C. W. Richmond 

 (U. S. N. M.). 



Syrbula eslavae Rehn. 



1900, Syrbula eslavx Rehn, Trans. Amer. Ent. Soc. xxvii, p. 91. 



Two males ; Cuernavaca. Morelos, Mexico. September. Collected 

 by Otis W. Barrett. 



Macliterocera mt'xicaiia Saussure. 



1859, Machxrocera mexicana Saussure, Revue et Magasin de Zoologie, 2e ser.. 



xi, p. 391. 

 Machserocera sumichrasti Thomas, Bull. U S. Geogr. Surv. Terr., 1st series. 



No. 2, p. 70, 1874. 



Twenty-two specimens; thirteen males, five females, four imma- 

 ture specimens; Cuernavaca, Morelos, Mexico. September. Col- 

 lected by Otis W. Barrett (4). Jalapa, Vera Cruz, Mexico. . Sep- 

 tember. Collected by Otis W. Barrett (1). Jalapa, Vera Cruz, 

 Mexico. September" 3-22, 1899. Collected by S. N. and M. C. 

 Rhoads (1). Orizaba, Vera Cruz, Mexico. January 9-16, 1892. 

 Collected by H. Osborn (U. S.-N. M.) (4). Teocelo, Vera Cruz, 

 Mexico. September. Collected by Otis W. Barrett (3). Texolo 

 Vera Cruz, Mexico. Various dates in March, 1899. Collected by 

 S. N. and M. C. Rhoads (9). 



i\fter an examination of thirty-two specimens of the genus Ma- 

 choerocera, I have reached the conclusion that sumichrasti of Thomas 

 is nothing but a phase of this very variable species. The color dif- 

 ferences as given by Thomas appear to be of no value, while struc 

 tural differentiations are absent. The median carina of the pronotum 

 is cut thrice in some specimens, in others twice, while a few have a 

 very faint trace of the third incision. 



Amblytropitlia mysteoa (Saussnre). 



1861, Stenobothrus mystecus Saussure, Revue et Magasin de Zoologie, 2e ser., 

 xiii, p. 317. 



Amblytropidia auriventris McNeill, Proc. Davenport Acad. Nat. Sci., vi. 



p. 227. December 19, 1896. 



TKANS. AM. ENT. SOC, XXIX. (2) NOVKMBER. 1902 



