1913.] NATURAL SCIENCES OF PHILADELPHIA 339 



south to Buenos Aires and Uruguay (Stal), west to San Ignacio, 

 Mendoza and Caucete, San Juan, Argentina. 



Abracris^i nebulosa (Bruner). 



1900. Jodacris (?) nebulosa Brunei-, Sec. Rep. Merch. Locust Invest. Comm. 

 Buenos Aires, p. 67. [Asuncion, Paraguay; Prov. of Tucuman, 

 Argentina.] 



Misiones. May 6, 1910. One female. 



This species has also been recorded from Corumba (Bruner), 

 Chapada (Rehn), and Victoria (Bruner), Brazil, Paraguay (Giglio- 

 Tos), and Sapucay, Paraguay (Bruner; Rehn). 



*Abracris signatipes (Bruner). 



1906. Omalotettix signatipes Bruner, Proc. U. S. Nat. Mus., XXX, p. 673. 

 [Sapucay, Paraguay.] 



Misiones. November 9, 1909. One male, four females. 

 This species has an extensive range to the northward, the present 

 locality constituting its most southerly known limit of distribution. 



Osmiliola aurita Giglio-Tos. 



1897. 0[smiUola] aurita Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, 

 XII, No. 302, p. 33. [San Lorenzo, Jujuy, Argentina; Caiza, BoUvian 

 Chaco.] 



Misiones. September 5, 1909; October, 1910. Two males, one 

 female. 



The pair of this species taken October, 1910, were in coitu. 



This very interesting species, in addition to the localities given 

 above, has been recorded from Pernambuco, Brazil, and Chapada, 

 Matto Grosso, Brazil, both by Bruner. 



Schistocerca infumata Scudder. 



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

 XXXIV, p. 457. [Montevideo, Uruguay; Brazil.] 



Misiones. May 7 and 23, 1910. (No. 15.) Two females. 



Posadas, Misiones. Elev. 80 meters. March 3, 1909. Two 

 males. 



One of the female individuals is labelled ''Common. " Bruner says 

 this form, "is quite generally distributed over Argentina and 

 Uruguay along the La Plata River and northward into Brazil." 

 The only definite records aside from those above mentioned are from 

 Sapucay, Paraguay (Rehn; Bruner). 



*i Bruner's genus Omalotettix equals this Walkerian genus, according to Kirby, 

 Synon. Catal. Orth., Ill, p. 428. 



