Bruner : South American Locusts. 501 



anterior edge of the cheeks below them, separated above by a space 

 ao greater than the diameter of the antennae. Fastigium of the < • 

 depressed, spatulately sulcate, the sulcation partially separated from 

 thai of the frontal costa by an obscure transverse V-shaped carina. 

 Frontal costa moderately prominent, broadly sulcate, and provided 

 with coarse lateral walls which diverge evenly below, continuous to the 

 base of the clypeus; lateral or facial carina prominent, straight, gently 

 divergent below. Antennae rather coarse and moderately elonj 

 reaching to the hind margin of the metathorax or a trifle beyond. 

 Pronotum a little longer than broad, viewed laterally gently arcuate 

 above, transverse sulci deep, the hind lobe somewhat expanded, only 

 about one-half as long as the anterior one; both the anterior and 

 posterior margins roundly emarginate, the latter much more broadly 

 so. Tegmina small, lateral, gently spatulate, and provided with four 

 percurrent veins, their apex reaching about half-way across the 

 abdominal segment. Abdomen rather small, tapering but little 

 towards the apex, which terminates in a blunt point, prominently 

 carinate above, especially on the basal two-thirds; last ventral segment 

 short, scarcely as long as its basal width; supra-anal plate rather 

 simple, triangular, with a fairly profound median sulcus, which is quite 

 broad at the base, but narrowed evenly toward the apex; marginal 

 apophyses of preceding segment moderately large, about twice as 

 long as broad, their apex broadly rounded, touching on their inner 

 margins and projecting into the basal portion of the sulcus of the supra- 

 anal plate; cerci pyramidal or subpyramidal, somewhat flattened, a 

 little more than twice as long as their greatest basal width, directed 

 to the rear and gently inwards, the apical fifth finger-like. Prosternal 

 spine moderately large, the base quadrate, tapering to a rather acute 

 point, which is gently directed to the front; interspace between the 

 mesosternal lobes not quite as wide as long and plainly nar- 

 rower than the lobes themselves. Legs decidedly large and robust, 

 especially is this true of the femora of all three pairs; the hind femora 

 projecting fully one-third of their length beyond the tip of the ab- 

 domen; hind tibiae expanded apically, eight-spined externally, nine- 

 spined internally. 



All the legs olive-green, sides of pronotum above much darker, 

 inclining to brownish but still with an olivaceous tint; the lower 

 portion dirty white, the disk brownish olive with testaceous lines 

 separating this field from the postocular dark bands; occiput of a 



