NO. 1661. 



ON SOME BRAZILIAN GRASSHOPPERS— REHN. 



153 



the lateral and apical margins slightly elevated; fastigio-facial angle 

 slightly rounded rectangulate, the apex of the rostrate inter-antennal 

 region obliquely sub-truncate, the facial line arcuato-concave, very 

 strongly retreating; frontal costa narrowed at its junction with the 

 fastigiuin, slightly constricted some little distance dorsad and ventrad 



Fig. 34.— MACH.t:ROPOLES kostratus. Lateral view of male type. ( x 3) 



of the ocellus, thence shghtly arcuato-convex to the clypeal suture, 

 sulcate throughout its length ; lateral facial carinse distinct, subparallel 

 dorsad, slightly divergent ventrad; eyes hardly prominent, elliptical 

 (male) or acute subovate (female) in outhne, in length ver}^ slightly 

 (female) or considerably (male) exceeding the infra-ocular 

 portion of the gense; antennse about twice the dorsal 

 length of the pronotum, very robust in the female, tri- 

 quetrous, serrate ensiform. Pronotum with its dorsal 

 length slightly less than half that of the caudal femora, 

 dorsum straight eephalo-caudad, slightly arcuate trans- 

 versely, the metazona slightly deplanate; cephalic margin 

 arcuato-truncate, caudal margin arcuate obtuse-angulate, 

 slightly sinuate; median carina very slight, broken by 

 two sulci the caudal of which is the more apparent; 

 lateral angles well rounded, a slight shoulder present on 

 the metazona ; lateral lobes very decidedly longer than 

 deep, ventral margin sinuate emarginate cephalad, ceph- 

 alic and caudal margin slightly sinuate, but more so in 

 the female than in the male. Tegmina surpassing the 

 apex of the abdomen by several millimeters in both sexes, 

 narrow, subequal, the apex narrowly rounded, costal lobe 

 hardly indicated; intercalary vein irregularly sinuate. 

 Prosternal spine considerably compressed, decidedly re- 

 trorse, apex moderately acute in the male, rather blunt in the female; 

 interspace between the mesosternal lobes nearly severed in the middle 

 by the sub-attingent lobes in the male, very narrow and hour-glass 

 shaped in the female; metasternal lobes attingent in the male, separated 



Fig. 35.— MA- 

 c H JE R o- 



POLES ROS- 

 T R A TU S . 



Dorsal 

 outline of 



HEAD AND 

 PRON O T U M 

 OF MALE 

 TYPE. (X 3) 



