66 



A. cyUndrodes Stal. Resistencia, Chaco (Giglio-Tos). 



A. Gracilis Giglio-Tos, 



GENUS STENOPOLA, STAL. 



St. puncticeps Stal. San Lorenzo, Jujuy (Giglio-Tos); 

 Resistencia, Chaco, (Bruner). 



GENUS PARACORNOPS, GIGLIO-TOS. 



P. longipeiinis (DeGeer). Among water plants, Resistencia, 

 Chaco; also Territory of Formosa across the river from 

 Asmicion, Paraguay (Bruner). 



GENUS BUCEPHALACRIS, GIGLIO-TOS. 



B. Borellii Gilgio-Tos. Formosa, just across the river from 

 Asuncion (Bruner). 



Fig. 30. — Aleuas lineatus Stal. — female. 



GENUS ALEUAS, STAL. 



A. lineatus Stal. Quite abundant among Juncus, Carcarana, 

 Rosario, etc,. Province Santa Fe. (O. Thomas, H. 

 Stempelmann). 



GENUS JODACRIS, GIGLIO-TOS. 



TABLE FOR SEPARATING THE SPECIES. 



A. Body cyliudrical, sides of pronotiim provided with a well-deiined 

 dusky band. Sexes equal in size. Cerci of male very long, slen- 

 der, and with the outer branch more or less curved. Hind tibias 

 with seven spines in outer row ferrug-inea Giglio-Tos. 



AA. Body more or less compressed, sides of pronotum with but poorly- 

 defined dusky bands. Sexes very unequal in size. Cerci of male 

 not unusually long, straight, the branches nearly equal in length. 

 Hind tibite with eight spines in outer row. 

 b. Wings with base bottle-green. nebulosa Bruner. 



bb. Wings caerulean. caeruleipeiiuis Bruner. 



J. ferrnginosa. Giglio-Tos. Found on rotten logs near Ft. 

 Pilcomayo, across from Asuncion, also at San Bernardino, 

 Paraguay in similar localities (Bruner). 



