228 JAMES A. G. REHN. 



Tseiiio|»»«la <»eiitiiris (Drury). 



1773, Gryllns centurio Drury. 111. Nat. Hist., ii, p. 78, pi. xli, fig. 3. 



Eighteen specimens, 11 males, 7 females (one immature), Jalapa, 

 Vera Cruz, viii. 



These specimens vary greatly in regard to the coloration, some 

 having a dusky suffusion covering the pattern of the tegmina. 



Schiitocerca vaga (Scudder). 



1876, Acridium vagum Scudder, Proc. Bost. Soc. Nat. Hist., xviii, p. 269. 



Five specimens, 2 males, 3 females; Tacubaya, D. F., xi, 25. 



Scliistocerca pyramidata Scudder.* 



1899, Schistocerca pyramidata Scudder, Proc. Amer. Acad. Arts and Sci., 

 xxxiv, p. 454. 

 Three specimens, 1 male, 2 females ; Cuernavaca, Morelos, v, vi 

 and 11 11-98. 



Schistocerca soiiorensis Scudder. 



1899, Sehistocercu sonorensis Scudder, Proc. Aiuer. Acad. Arts and Sci., 

 xxxiv, p. 463. 



One specimen, $ ; Cuernavaca, Morelos, v. 



This specimen is placed under this species with some uncertainty, 

 though the alternative is rubiginosa, with which it does not agree in 

 several particulars. 



Schistocerca americana (Drury). 



1770, Gryllns americanus Drury, 111. Nat. Hist., i, p. 128, pi. 49, fig. 2. 



Two females; Cuernavaca, Morelos, vi. 



Aidemona azteca (Saussure). 



1861, Platyphyma azteca Saussure, Eevue et Mag. de Zool. (2), xiii, p. 161. 



Five specimens, one male, four females ; Cuernavaca, Morelos, vi 



(3), Nepantla, Morelos, xi (1), and Xico, Vera Cruz, viii (1). 



Iflelaiiopliis corpiilentus Scudder. 



1899, Melanoplus corpulentu.i Scudder, Proc. U. S. Nat. Mus., xx, p. 313. 



One specimen, <? ; Tacubaya, D. F., 25, xi, 



NelaiiopiiiN arizouie Scudder. 



1879, Melanoplus arizonae Scudder, Proc. Bost. Soc. Nat. Hist., xx, p. 64. 



One female ; Cuernavaca, Morelos, vi. 



* The specimen from Rio Cocula, Guerrero, previously determined by the wri- 

 ter as S. pyramidata (Trans. Am. Ent. Soc, xxvii, p. 97), proves on more recent 

 examination to be Rchistocerca camerata Scudder (Proc. Amer Acad. Arts and 

 Sci.. xxxiv, p. 451), which was originally described from Sinaloa. 



