284 ■ PROCEEDINGS OF THE ACADEMY OF [Apr., 



Diedronotus laevipes (St&l). 



Misiones. January, 1911. (Jorgensen.) Two males, three 

 females. 



Diedronotus discoideus (Serville). 



Misiones. March 19-29, April 13-30, May 30, Jmie 12, July 1, 

 1910. (Jorgensen.) Five males, seven females. 



All of the above specimens have the discoidal field of the tegmina 

 more or less maculate. 



Elaeochlora viridicata (Serville). 



Misiones. January 12-18, 1910, January, 1911, February 11, 

 March 12 and 24, November, December, 1910. (Jorgensen.) Eight 

 males, ten females. 



La Cumbre, Prov. of Cordoba. (Lizer.) Two adult males, one 

 immature male, one immature female. 



The Misiones specimens bear out the facts previously stated by 

 ygi2 regarding the divergence of material from this locality from 

 typical Buenos Aires individuals, the only difference from the points 

 there noted being the lack of dull purplish on the humeral regions of 

 two males and the but very faint indication of it in another. The 

 La Cumbre adults are similar in form and coloration to Buenos 

 Aires individuals, but the tegmina and wings are shorter. The 

 nymphs show that the reduction of the median carina in this genus 

 is a feature of specialization, as they have it strongly elevated and 

 considerably arcuate. 

 Chromacris miles (Drury). 



Misiones. March 21, December, 1910. (Jorgensen.) Three 

 males, five females. 



La Cumbre, Prov. of Cordoba. (Lizer.) One adult female, two 

 immature females. 



Buenos Aires. (Lizer.) One male, one female. 



Zoniopoda iheringi Pictet and Saussure. 



Misiones. January 12, February 10-28, 1910. (Jorgensen.) 

 One male, four females. 



* Zoniopoda tarsata (Serville). 



La Cumbre, Prov. of Cordoba. (Lizer.) One male, one female. 



These specimens appear to be true tarsata, agreeing with material 

 from Rio Grande do Sul, Brazil. Apparently this is the only Argen- 

 tine record of true tarsata. 



12 Proc. Acad. Nat. Sci. Phila., 1913, p. 331. 



