1913.] NATURAL SCIENCES OF PHILADELPHIA. 275 



.southeast of Mendoza on the Rio Tunuyan. The Provincia de San 

 Juan is similar to Mendoza, but hotter and drier." 



Seventh. Province of San Luis. East of Mendoza and, according 

 to Mr. Jorgensen, of the same nature and condition as around 

 Mendoza. 



Eighth. Province of Cordoba. East of San Luis and forming a 

 considerable part of the great ''Pampa. " 



Ninth. Vicinit}^ of Buenos Aires, The immediate vicinity of the 

 t3apital, a historic zoological locality, is represented by quite a number 

 of specimens. 



The total number of species represented aside from the new forms 

 is one hundred and forty-two, of which fifty-six are here recorded 

 from Argentina for the first time. Of these fifty-six, forty-nine are 

 recorded only from the Misiones. Of the total of one hundred and 

 sixty-two species, one hundred and sixteen are recorded from the 

 Misicrnes. These figures give some idea of the richness of the Misiones 

 territory in Orthoptera. 



A tabulation of the distribution of the entire list of species shows, 

 among other things, the following interesting features: 



One hundred and sixteen species recorded from the Misiones. 



Twenty species recorded from the Misiones and west of, but not 

 south of, the same. 



Forty-seven species recorded from Brazil, Paraguay and the 

 Misiones alone in Argentina. 



Thirty-two species recorded from the Misiones and the Pampan 

 region, also northward, but not westward. 



Seventeen species recorded from Buenos Aires westward to 

 Mendoza. (Typical pampan and plains forms.) 



One species recorded only from Jujuy and the Pampas. 



Three species recorded only from the Chaco, Jujuy, and Tucuman. 



The distribution of all of the species treated has been given in the 

 paper, and, aside from the new ones, the forms here recorded from 

 Argentina for the first time bear an asterisk before their names. 



Family BLATTIDiB. 



Subfamily PSEUDOMOPIN^. 



* Fseudomops negleota Shelf ord. 



1906. P[seudomops] neglecta Shelford, Trans. Ent. Soc. London, 1906, p. 256. 

 [Rio Grande do Sul, Brazil.] 



Misiones. December 20. (No. 4.) ''Common on flowers." 

 Two males, one female. 



