NO. 1661. ON SOME BRAZILIAN GRASSHOPPERS— REHN. 161 



tral margin arcuate-emarginate cephalad, the median angle rounded 

 obtuse, ventro-caudal angle obtuse-angulate, the caudal margin 

 arcuate-emarginate. Tegmina two-thirds (male) to four-fifths 

 (female) the length of the pronotum, reaching to (male) or very 

 slightly exceeding (female) the cephalic margin of the metanotum, 

 subovate, the greatest width contained one and one-half times in the 

 length, the apex very broadly and bluntly rounded in both sexes, 

 broader, however, in the female. Wings minute. Prostemal proc- 

 ess veiy low, blunt, slightly more prominent in the male than in the 

 female; interspace between the mesosternal lobes narrow and decid- 

 edly longitudinal in the male, broader and subquadrate in the female; 

 metasternal lobes subcontiguous in the male, in the female separated 

 by a subtrigonal interspace which is decidedly narrowed caudad, the 

 narrowest space separating them being slightly less than half the 

 greatest. Abdomen slightly keeled dorsad; furcula of the male 

 prominent, spiniform, subparallel, as long as the segment from which 

 they arise ; supra-anal plate of the male subtrigonal, the margins con- 

 siderably arcuate-emarginate at the base of the cerci and slightly 

 the same before the apex which is blunted acute-angulate, a broad 

 shallow median depression present on the proximal three-fourths, 

 margins considerably reflexed and distinctly elevated mesad, the 

 elevated portion covered with small excrescences; cerci of the male 

 rather slender, elongate, reaching to about the apex of the subgenital 

 plate, sigmoid, elevated, the whole cercus compressed, more dis- 

 tinctly so mesad and distad, proximal third tapering, rather narrow 

 mesad, the distal third, which is parallel to the axis of the body, 

 slightly lamellate, apex moderately acute, the whole cercus regu- 

 larly and gently curved toward the middle line to the proximal third 

 which is slightly arcuate divergent; subgenital plate of the male 

 inflated, recurved, the apex very close to the apex of the supra- 

 anal plate and very blunt and low, the outline of the plate when seen 

 from the side is moderately arcuate; ovipositor jaws of the female 

 rather straight, the dorsal subequal proximad and mesad, the distal 

 portion rather sharply hooked. Cephalic and median limbs moder- 

 ately long, the femora very considerably inflatetl in the male. Caudal 

 femora exceeding the apex of the abdomen in both sexes, of medium 

 build, tapering, the greatest width contained about four times in the 

 length, pattern of the pagina regular, genicular lobes with their 

 apices rectangulate in the female, somewhat arcuate rectangulate in 

 the male; caudal tibise slightly shorter than the femora, external 

 margin armed with seven spines, internal with ten spines. 



General color olive-green on the dorsum of the head, pronotum 

 and abdomen, becoming saffron yellow ventrad and on the sides of 

 the abdomen. Head with the face oil green in the male, dark olive- 

 green in the female, the gense much the same but slightly paler in 



Proc. N. M. vol. xxxvi— 09 11 



