NO. 1661. 0\ SOME BRAZILI.W GRASSHOPPERS— REHX. 137 



Size small; form slender, subequal in width; surface glabrous, 

 punctulate on the pronotum and pleura. Head with the exposed 

 dorsal surface slightly longer than the dorsum of the pronotum; 

 occiput \\4th an extremely slight arcuation when seen from the side, 

 very slightly elevated dorsad of the line of the pronotum, interocular 

 region descending very slightly to the fastigium, the width of the 

 interspace between the eyes about half that of the fastigium ; fastigium 

 slightly acute rectangulate (male) or slightly obtuse rectangulate 

 (female), the apex broadly rounded, the breadth considerably greater 

 than the length, disk of the fastigium slightly depresso-punctate 

 within the margins, the interocular region (female) or interocular region 

 and fastigium (male) with a slight but distinct medio-longitudinal 

 sulcus; fastigio-facial angle acute-angulate, the immediate angle well 

 rounded, facial line very strongly retreating, the angle of the face 

 being even more decided ventrad of the insertion of the antennae; 

 frontal costa broad, considerably narrowed dorsad to meet the fas- 

 tigium, subequal in width from between the antennae to the clypeal 



Fig. 21.— Oxybleptella pulchella. Lateral vie-w of female type. (X 3) 



suture, margins well elevated, surface of costa and face between 

 facial supplementary carinas impresso-punctate; supplementary facial 

 carinas moderately divergent dorsad, decidedly divergent ventrad, more 

 particularly in the female; eyes rather large, elongate acute-subpyri- 

 form, moderately prominent when seen from the dorsum, length 

 nearly three times that of the infra-ocular portion of the genas; 

 antennae distinctly shorter than the head and pronotum together, 

 very appreciably depressed, very slightly ensiform, apex blunt. 

 Pronotum with its greatest dorsal width contained one and two- 

 thirds (female) to one and three-fourths (male) times in the greatest 

 length, dorsum moderately arcuate in transverse section; cephalic 

 margin arcuate (male) or arcuato-truncate (female), caudal margin with 

 a hardly appreciable angle in the male, very slightly but distinctly 

 obtuse-angulate in the female, lateral angles very much rounded on 

 the prozona, apparent but rounded on the metazona; disk of the 



