1914.1 



NATURAL SCIENCES OF PHILADELPHIA. 



117 



bisinuate when seen from the lateral aspect; disk of the pronotum 

 very narrow mesacl, the median width about half the caudal width 

 of the same; lateral margins of the disk regularly converging to the 

 middle of the same, thence regularly diverging caudad, indicated 

 caudad by a rounded angle, but elsewhere by color onlj^, in section 

 the cephalic portion of the disk is arcuate, the caudal section deplan- 

 ate; cephalic margin of disk truncate, caudal margin of same gently 

 arcuate, distinctly elevated; transverse sulcus V-shaped, obliquely 



Fig. 23. — Dichopetala gladiator n. sp. Lateral view of type. (X 2.) 



severing the margins of the disk mesad, on the lateral lobes extending 

 considerably ventrad ; lateral lobes with the greatest depth contained 

 twice in the dorsal length of the same, cephalic margin subtruncate, 

 ventro-cephalic angle rotundato-rectangulate, ventral margin arcuato- 

 sinuate, slightly emarginate cephalad, ventro-caudal angle and 

 caudal margin gently arcuate, dorsad rounding into the caudal mar- 

 gin of the disk, the surface of the lobes strongly drawn in to the 



Figs. 24 and 2.5. 



-Outline of left cercus of topotypeof Dichopetala emarginata (24) 

 and type of D. gladiator (25). (X 10.) 



lateral margins of the disk. Tegmina slightly longer than the disk 

 of the pronotum, greatest width of the discoidal and anal fields of 

 the tegmina subequal to the length of the anal field; costal margin 

 moderately arcuate, distal margin obliquely arcuato-truncate, distc- 

 caudal (literally apical) angle well rounded, sutural margin arcuate- 

 obtuse-angulate, slightly sinuate distad of the extremity of the 

 stridulating vein; marginal field moderately broad, discoidal field 



