30 



GENUS TOXOPTERUS, BOLIVAR. 



If this genus of the Tryxalinae occurs at all within the 

 confines of Argentina it will be near the Bolivian frontier. 

 It has been included in the table of genera on account of 

 the similarity in color between Toxopteni^ nuDiatns Bolivar 

 and a new^ form from several localities in Cordoba and Santa 

 Fe. 



GENUS FENESTRA, BRUNNER. 



TABLE FOR SEPARATION OF THE SPECIES. 



A. Sides of pronotum gently diverging posteriorily in both sexes: the 



median carina dusky, head not espeeiallj' large, no wider than 



front edge of pronotnm. 



b. Larger. Anterior field of male wings very broadly fenestrate: the 



posterior field colored throughout pulchripeiiuis Bruner. 



bb. Smaller. Anterior field of male wings narrowly fenestrate: the 



posterior field colored on basal half. intermedia Bruner. 



AA. Sides of pronotum parallel in male at least, the median carina of 



same color as disk. Head comi)aratively lai'ge, a little wider 



than front edge of pronotum. W.ngs hyaline. 



argentina Bruner. 



F. 'pulenripennis, n. sp. 



Body slender; general color dull brownish testaceous 

 varied with green; antennae in male subensiform, in female 

 strongly ensiform; lateral carinae of pronotum straight, 

 slightly diverging posteriorly in both sexes; the median 

 carina dark browni or black; dorsal portion of head, 

 pronotum and folded wangs varying from brown to green in 

 female, brown in male ; sides of j^ronotum and head with 

 body browaiish testaceous in female, green becoming mixed 

 with brown on cheeks and metathorax in male ; front mar- 

 gin of tegmina in both sexes broadly marked with green ; 

 immediately back of this is a rather broad dark stripe more 

 or less interrupted by the heavy white cross-veins found in 

 this particular region ; balance of wing browm; hind wings 

 with the basal portion bright vermillion, becoming more 

 dilute tow^ards ai3ex ; anterior field broadly fenestrate, the 

 cross-veins on basal portion being angled and directed 

 towards the apex of wing anteriorl3^ 



