1913.] NATURAL SCIENCES OF PHILADELPHIA. 355 



tained one and one-half times in the length, ventral margin arcuato- 

 -emarginate dorsad of the coxae, ventro-caudal angle and caudal 

 margin broadly rounded, humeral sinus acute-angulate incised. 

 Tegmina two and two-thirds times as long as the head and pronotum, 

 acute lanceolate, the greatest width in the proximal half, distad of 

 which the tegmina taper to the narrowly rounded apex; marginal 

 field in the proximal third of the tegmina but little narrower than 

 the width of the discoidal field in the same region, thence rather 

 abruptly narrowing to slightly distad of the middle of the tegmina 

 where the marginal field becomes non-existent; median vein diverging 

 •at the middle of the tegmen and. reaching the sutural margin of the 

 tegmen, simple; discoidal vein with a single complete ramus which 

 follows the median vein in trend. Wings with their exposed portion 

 slightly longer than half of the tegminal length, narrow, gently 

 tapering to the very acute apex. Cephalic tibiae with the dorsd- 

 caudal margin with four spines aside from the apical one, dorso- 

 •cephalic margin unarmed. Median tibiae with all of the margins 

 armed, the dorso-cephalic with fewer spines than the others. Caudal 

 'femora subequal to the length of the wings, unarmed ventrad. 

 Ovipositor slightly longer than the head and pronotum together, 

 gently arcuate, moderately robust, tapering, apex acute, ventral 

 margin slightly flattened in the proximal half, dorsal margin serrato- 

 ■dentate for two-thirds of its length, ventral margin more weakly 

 serrato-dentate for half of its length, surface of the ovipositor except 

 on the swollen proximal portion scabroso-dentate ; subgenital plate 

 trigonal with the distal extremity of the margin narrowly truncate. 



General color clay color, except the tegmina, exposed portion of 

 wings, distal two-thirds of the ovipositor and almost all of the tibiae 

 which are apple green. It is probable that apple green is the general 

 natural coloration. Eyes burnt umber. Tegmina with a brief 

 ■edging on the costal margin and a longer one on the sutural margin 

 buff. 



Allotype : cf ; Potrerillos, Province of Mendoza, Argentina. 

 Elev. 1,368 meters. January 20,1907. (P. Jorgensen.) [Acad. 

 Nat. Sci. Phila.] 



The following characters are those of difference from the female 

 sex: 



Size rather small. Tegmina with the tympanum having the length 

 slightly greater than the width, the apex of the stridulating vein 

 Toundly projecting beyond the general arcuation of the tympanal 

 inargin. Exposed portion of the wings two-thirds as long as the 



