252 BKAZILIAN ORTHOPTERA 



the eyes: eyes elongate, narrow, strongly reniform: antennae surpassing the 

 length of the body; proximal joint about as long as the ocular interspace, 

 arcuate; second joint short conical, not half as long as the proximal joint; third 

 joint subequal in length to the second one, moniliform; succeeding joints short, 

 monihform, piligerous: palpi with third joint elongate, slender; fourth joint 

 about two-thirds as long as the third joint, inverted elongate conical; fifth 

 joint of the usual elongate obtuse-angle triangle type, the length of the joint 

 subequal to that of the third joint. Pronotum transverse subequal elliptical, 

 the greatest length contained one and one-half times in the greatest width: 

 cephalic margin faintly arcuate, almost imperceptibl}' sinuate dorsad of the 

 eyes ; lateral margins very broadly, regularly and strongly arcuate ; caudal mar- 

 gin arcuato-truncate ; in transverse section the pronotum is flattened caudad, 

 elsewhere regularly but not strongly declivent ; surface of the disk with a dis- 

 tinct medio-longitudinal depression, which is narrower and deeper caudad, fail- 

 ing to reach either the cephalic or caudal margin, laterad of this the disk shows 

 some irregular but paired impressions and lateral diverging sulci at caudal 

 third. Tegmina surpassing the apex of the abdomen by the length of the 

 pronotum, acuminate lanceolate, the greatest width, which is at the proximal 

 third, contained three times in the greatest length: costal margin strongly 

 arcuate proximad, nearly straight distad; sutural margin straight except 

 for a short proximal arcuation, which exposes the scutellum, and a distal 

 convergence to the acute but narrowly rounded apex: marginal field very 

 broad, reaching to about the middle of the tegmen, very much attenuate 

 distad, in transverse section slightly declivent; scapular field broad at the 

 middle of the tegmen, regularly narrowing distad ; anal field pyrif orm : discoidal 

 vein gently arcuate proximad, thence straight distad; costal veins strong, 

 oblique and sixteen to seventeen in number; discoidal vein with four short 

 rami to the sutural margin distad; median vein paralleling the discoidal vein 

 to the distal third, thence arcuate toward and joining the sutural margin, 

 rami of the median vein five to seven in number and frequently bifurcate; anal 

 vein strongly arcuate proximad, straight distad except for a short arcuation at 

 the sutural margin, which is joined at its proximal third; axillary veins four 

 in number, with two incomplete supplementary veins. Wings moderately 

 elongate; costal margin slightly flattened at the costal veins: appendicular 

 field relatively small and intercalary in position, its free margin arcuate and 

 not extending the margin of the wing, its outline proximad acute: mediastine 

 vein anastomosing with the costal veins; discoidal vein straight, reaching to 

 the proximo-cephalic angle of the appendicular field; median vein in general 

 straight, distad gently approaching the discoidal vein; medio-discoidal area 

 mesad nearly twice as wide as the mcdio-ulnar area and divided by cross- 

 veins into eleven rectangulate, frequently quadrate, interspaces; medio-ulnar 

 area with five or more short transverse veins; ulnar vein bifurcate distad; 

 axillary vein biramose. Abdomen with the dorsal antepenultimate segment 

 bearing a median circular glandular impression, which is rather regularly 

 clothed with pile directed inward toward its center, a medio-longitudinal carina 

 present within the same impression: supra-anal plate transverse, broadly 

 trigonal; margin faintly indented mesad, the form much ol)scured due to 

 shrivelling: ccrci elongate, subfusiform, depressed; apex attenuate, acuminate; 



