86 PROCEEDINGS OF THE ACADEMY OF [JaiL, 



severs the same mesad, thence shghtly divergent caudad; cephahc 

 margin of disk weakly arcuato-emarginate, caudal margin of same 

 truncate, width of disk caudad contained about one and one-third 



times in the length of the same; transverse 

 sulcus forming a broad V-shaped pattern mesad 

 on the disk; lateral lobes of the pronotum with 

 the greatest depth contained one and two-thirds 

 times in the dorsal length of the same, cephalic 



jpj„ 9 Dichopetala ii^^rgin of same very faintly emarginate dorsad, 



diirangensis n. sp. ventro-cephalic angle rotundato-rectangulate, 

 head' pronotum ventral margin moderately sinuato-truncate, ven- 

 and tegmina. tro-caudal angle broadly rounded, caudal margin 

 ^ '^ obliquely arcuato-truncate. Tegmina with the 



exposed portion about two-fifths the length of the dorsum of the 

 •pronotum, transverse, greatest width about twice the apparent 

 length, considerably overlapping mesad; costal margin obliquely 

 arcuate, sutural margin subtruncate, distal margin subtruncate, 

 disto-sutural angle narrowly rounded; marginal field comprising 

 about two-fifths the entire tegminal width. Supra-anal plate 

 rotundato-trigonal, the distal margin of same slightly thickened and 

 recurved; cerci very short, conical, apex slightly incurved; ovipositor 

 about one-half the length of the caudal femora, moderately falciform, 

 median depth about one-sixth of the length, dorsal margin con- 

 siderably and regularly arcuate, ventral margin for about three-fourths 

 of the length subtruncate, the distal fourth of the ventral margin 

 strongly arcuate, dorsal margin with distal two-fifths armed with 

 six to seven decided teeth which are well spaced and increasing in 

 length distad, ventral margin armed on distal fourth with nine spines, 

 which increase in length distad and are slightly recurved at the same 

 end of series; subgenital plate small, broadly emarginato-truncate 

 mesad, laterad with short trigonal lobes at the angles. Cephalic 

 femora slightly shorter than length of head, pronotum and tegmina 

 combined, very faintly clavate distad; tibiae distinctly exceeding the 

 femora in length, tympanum small, elliptical. Median femora one- 

 third longer than the cephalic femora. Caudal femora moderately 

 elongate, proximal dilation moderate, regularly tapering to the 

 narrow subequal distal portion; caudal tibiae exceeding the femora 

 l)y about one-half the length of the pronotal disk. 



Notes on Male Sex. — As all the specimens (two in number) of this 

 sex are immature, we can give only a few notes on the genitalia as 

 there found. The cerci are provided mesad on the dorsal surface 



