BCUDDER. — THE GENUS SCHISTOCERCA. 473 



those sent to me by Professor Bruner from Argentina, while engaged in 

 studying its ravages there. His report states that it occurs not only in 

 Argentina, but in " the adjoining portions of Uruguay, Paraguay, Brazil, 

 Bolivia, and Chile." Burmeister received it from the valley of the Pa- 

 rana, whence it derives its name. Its home, according to Bruner, appears 

 to be to the north of the settled district of Santa Fe, Cordoba, and 

 Entre Rios. 



40. Schistocerca exsul. 

 Schistocerca exsul Scudd.!, Bull. Mus. Comp. ZoiJl., XXV. 4 (1893). 



The single female I have seen was taken " two hundred and fifty miles 

 off the west coast of South America." 



41. Schistocerca pallens. 



Gri/Uus pallens Thunb., Mem. Acad. St. Pe'tersb., V. 237 (1815). 



Acridium {Schistocerca) pallens Stal, Rec. Orth., I. 66 (1873). 



Schistocerca pallens Brunn.-Redt., Proc. Zool. Soc. Lond., 1892, 210 (1892). 



1 Acridium cubense Sauss., Orth. Nova Amer., II. 14 (1861). 



? Cyrtacanthacris pectoralis Walk., Cat. Derm. Salt. Brit. Mus., III. 551 (1870). 



Specimens are before me from Mexico, Packard (Mus. Comp. Zool.) ; 

 Vera Cruz, Mex., Heyde (Bruner); Motzoronga, Mex. (Bruner); 

 Meriden, Yucatan ; Realejo, Nicaragua, April, McNeil ; San Domingo, 

 Frazer ; Surinam, Schaum ; Pernambuco, May (Bruner), Chapada, 

 Aug. (Mus. Comp. Zool.), and Victoria, Brazil, May (Bruner) ; and 

 Uruguay River, Wyman (Mus. Comp. Zool.). It is also reported from 

 Cuba by Stal. 



42. Schistocerca cancellata. 



Acridium cancellatum Serv., Orth., 664 (1839) ; Blanch., Gay, Hist. Fis. Chile, 

 Zool., VI. 71 (1849). 



I have specimens from Chile which agree perfectly with the descriptions 

 of the original specimens from the same country. There is also a speci- 

 men in the Cambridge Museum from Para, July. It differs but little 

 from S. americana, and may perhaps be regarded as a mere race of that 

 species. 



Blanchard in Gay's Chile refers to a figure of this species in the atlas 

 of that work (Plate 2, Figure 7), but I cannot discover that more than 

 one plate of Orthoptera was ever published. Four copies have been 

 examined in a vain search for more. 



