Bruner : South American Acri ea. 61 



eyes. Antennae long and filiform, unicolorous, in the female al least 

 one and one-half times the combined length of head and pronotum 

 (missing in male specimen). Pronotum short, withoul lateral carinas, 

 rather wide, bul a trifle longer than its greatesl width; the anterior 

 lobe glabrous, bul sparsely and minutely punctulate, its sides parallel; 

 hind lobe closely and rather deeply punctulate, expanding posteriorly, 

 the disk flattened; median carina fairly prominent, thrice severed by 

 the profound transverse sulci and thereby giving to it a lobate appear- 

 ance: anterior margin straight, strongly reflexed; posterior margin 

 widely angulate, the apex rounded; lateral lubes higher than long, 

 the lower posterior angle broadly rounded. Tegmina somewhat 

 abbreviated, in the male just reaching the tip of the abdomen, in the 

 female about two-thirds as long as the abdomen, tapering towards the 

 apex, the latter rounded, sparsely, bul rather heavily, veined. Wings 

 somewhat shorter than the tegmina, nearly as broad as long, the 

 anterior held with a rather strong fenestrate area, colored much as in 

 the species of Chromacris. Hind femora moderately robust, evenly 

 narrowing apically, the pennae regular and few, carina' smooth; gen- 

 icular lobes short, rounded; hind tibiae robust, eight-spined on outer 

 row. Prosternal spine of moderate size, acuminate, directed gently 

 to the rear. Mcso- and meta-sternal lobes widely separated, the 

 interspace of both broader than long; tip of male abdomen blunt, the 

 last ventral segment short, the supra-anal plate triangular, tectate. 

 ( a neral color glossy black. Head perpendicularly vittate with 

 prominent flavous bands, which are more or less strongly tinged with 

 orange-red, these bands are arranged one at the posterior border of 

 each cheek, and one on each side of the face following and including 

 the lateral carina- and continuing below across the clypeus and labium, 

 and above across the vertex and occiput, where they join with the 

 upper extremities of the genal lines. Pronotum with most of the 

 posterior lobe and a small portion of the lower lateral edges of the 

 anterior lobe flavous as in collaris and exilipes. Tegmina with the 

 principal and cross-veins testaceo-vinaceous. Pleura with oblique 

 narrow line- in advance of the coxa:'. Hind femora with the carina? 

 and edges of pennae of outer face flavous; hind tibia' except base and 

 immediate apex blood-red. Coxae, sides of meso- and meta-sternuin, 

 each of the ventral segments of abdomen and of the dorsum on each 

 side above and below conspicuously maculate with sealing-wax red- 

 Length of body, d\ 26.5 mm., 9, 40 mm.: of pronotum, cf, 6.5 



