132 



PROCEEDINGS OF THE ACADEMY OF 



[Jan., 



about four and a half times as long as the body, proximal joints 

 cylindrical. Pronotum very faintly sellate, dorsal line weakly as- 

 cending caudad when seen from the side; form of disk as usual in the 

 genus, the median width hardly more than half that of the caudal 

 margin of the same, regularly diverging cephalad and caudad, more 

 sharply so cephalad; lateral margins of disk indicated on metazona 

 by rounded angles, by color alone on prozona; cephalic margin of 

 disk subtruncate, caudal margin of disk almost imperceptibly 



Fig. 33. — Dichopetala oreoeca n. sp. Lateraf view of type. (X 2.) 



arcuate; transverse sulcus broadly V-shaped mesad on disk, severing 

 the lateral margins of the disk mesad; lateral lobes of the pronotum 

 with the greatest depth contained one and one-half times in the 

 dorsal length of the same, cephalic margin sinuato-truncate, ventro- 

 cephalic angle blunt, nearly rectangulate, ventral margin arcuato- 

 truncate, gently rounding into the oblique arcuato-truncate caudal 

 margin. Tegmina in length nearly equal to that of the combined 



Figs. 34 and 35. — Outline of cercus of males (types) of Dichopetala oreoeca 



(34) and D. calUana (35). ( X 10.) 



head and pronotum; costal margin gently arcuate, disto-caudal 

 angle quadrantiform, distal margin obliquely passing into the distal 

 portion of the sutural margin, the latter roundly obtuse-angulate 

 at the extremity of the stridulating vein, obliquely arcuato-sinuate 

 distad of the same; marginal field moderately wide, discoidal field 

 regularly widening in the distal two-thirds, anal field with the greatest 

 length little more than the greatest width, stridulating vein gently 



