336 PROCEEDINGS OF THE ACADEMY OF [May, 



The only localities known for this form are that of the type and the 

 Misiones. 



Diponthus argentinus Pictet and Saussure. 



1887. D[iponthus] argentinus Pictet and Saussure, Mitt. Schweiz. Entom. 

 Gesell., VII, p. 372. [Buenos Aires.] 



Mendoza, Prov, of Mendoza. Elev. 767 meters. April 9, 1908. 

 One female. 



Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Janu- 

 ary 31, 1907; April 3, 1907; December 3, 1903. Two adult and 

 one immature female. 



Cordillera de Mendoza. April 3, 1908. One female. 



Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. December 

 27, 1907. One male, one female. 



These specimens vary considerably in the tone of both the dark 

 and light base colors, the former being olive green in some, blackish 

 in others, while the pale shade varies from nearly clear yellow or 

 creamy yellow to decided dull orange. 



The single immature individual was taken April 3, 1907. 



This species ranges from Buenos Aires west to the Cordillera de 

 Mendoza, while to the north or south we know nothing of the limits 

 of its distribution. 



Leptysma filiformis (Serville). 



1839. Opsomala filiformis Serville, Hist. Nat. Ins. Orthopt., p. 593. [The 

 north of the State of Sao Paulo, BrazU.] 



Misiones. March 18, 1909; December 12, 1909. (No. 12.) 

 Two males. 



These specimens fully agree with Sao Paulo females now before us. 



The species has been recorded from as far north and east as Rio de 

 Janeiro, Brazil (Bolivar), south to the Rio Colorado, Buenos Aires 

 (Berg), west to San Lorenzo, Jujuy (Giglio-Tos), and Chapada, 

 Matto Grosso, Brazil (Bruner). 



* Leptysma obscura ^Thunberg). 



1827. Truxalis obscura Thunberg, Nova Acta Reg. Soc. Scient. Upsal., 

 IX, p. 79. [Brazil.] 



Misiones. December 2 and 12, 1909. (No. 12.) Two males. 



These individuals fully agree with males from Sapucay and San 

 Bernardino, Paraguay. 



The range of this species extends- from Bonito, Pernambuco, 

 Brazil (Rehn), south to the Misiones, west to Chapada, Matto 

 Grosso, Brazil (Bruner; Rehn). 



