Bruner: South American Acridoidea. 75 



Head large and coarse, nearly twice as long as the pronotum, the 

 fronl edge of which it slightly exceeds in width; eyes of moderate size, 

 not prominent, separated by a space equal t<> aboul one-half the 

 diameter of the basal antennal joint; the fastigium very large and 



three-fourths the length of the occiput, deeply and broadly sulcatc 

 longitudinally at middle, separated from the vertex by a transverse 

 sulcus, and bordered at sides and behind by a prominent rounded 

 carina; lateral ocelli small, wholly within the deflexed area of the 

 fastigium bounded by the lateral carina referred to above. Antennae 

 large, coarse, somewhat longer than the combined length of the head 

 and pronotum, only the apical joints filiform; inserted considerably 

 in advance of the lateral ocelli. Face nearly straight viewed in pro- 

 tile, the frontal costa quite prominent, of nearly equal width through- 

 out and fairly deeply sulcate in advance of a line drawn between the 

 lower anterior edge of the eyes, below or back of this shallow and fading. 

 Pronotum somewhat widest in front, closely and minutely punctulate, 

 the median carina distinctly visible throughout; anterior and posterior 

 margins of disk rounded, the latter very gently emarginate at middle. 

 Tegmina narrow, a fourth longer than the abdomen, the longitudinal 

 veins fairly prominent, cross- veins faint, wings either very minute or 

 entirely aborted. Anterior and middle legs minute; hind femora 

 slender, reaching to middle of the fifth abdominal segment; hind tibiae 

 expanding but gently apically, their lateral edges scarcely laminate, 

 nine to eleven spines externally. Valves of the ovipositor short, 

 robust, supplied with strong apical and lateral teeth as well as with a 

 discal row on base of upper pair. Prosternal spine slender, the apical 

 half strongly bent to the rear, its apex rounded; anterior edge of 

 mesosternum quite strongly advanced as a coarse blunt projection 

 towards the middle of the prosternum. 



General color pale testaceous. Sides of head, lower edges of pro- 

 notum and middle of pleura longitudinally striped with dirty white 

 bordered by dull olivaceous. Antennae, fastigium, and tegmina above, 

 more or less tinged with rufous. Hind tibia* tinged with pale glaucous 

 or greenish gray. Pulvilli, tarsi beneath, and tibial spines, more or 

 less piceous. 



Length of body, 9 , 50 mm., of antennae about 20 mm., of head to 

 tip of fastigium, 12.5 mm., of occiput 6 mm., of pronotum, 6.5 mm., 

 of tegmina, 49 mm., of hind femora, 23.5 mm. 



Habitat. — The single female at hand, the type, comes from Chapada, 



