266 PROCEEDINGS OF THE ACADEMY OF [May-Oct.,. 



broadly arcuate, ventro-caudal angle not indicated, the ventral 

 margin passing regularly into the arcuate caudal margin, humeral 

 sinus well indicated, rounded obtuse-angulate. 



Tegmina surpassing the apex of the abdomen by the greater por- 

 tion of the length of the caudal femora, its length slightly more 

 than six times that of the disk of the pronotum, its greatest width 

 contained two and four-fifths times in the greatest length of the 

 same: costal margin regularly and rather strongly arcuate, sutural 

 margin similarly arcuate, apex broadly rounded acute: marginal 

 field at its widest point forming about two-fifths of the entire teg- 

 minal width at that point: median vein diverging at two-fifths 

 of the tegminal length from the base, bifurcate, the arms reaching 

 the sutural margin very shortly before the apex; ulnar vein with 

 two distinct rami ; transverse nervures of the discoidal field rela- 

 tively few, rather regularly placed, those distad slightly oblique, 

 the "dead-" spots placed one on each of the ulnar rami close to the 

 main vein, the third covers the short transverse nervures connecting 

 the ulnar vein and the pi-oximal fork of the median vein: anal field 

 narrow, elongate. Wings but slightly projecting distad of the 

 closed tegmina, the apex moderately acute when closed, when the 

 wing is expanded the apex is rotundate rectangulate. 



Mesosternal lobes relatively small, acute: metasternal lobes 

 rectangulate, arcuate laterad. Abdomen distinctly compressed, 

 moderately carinate dorsad, aside from the two dorsal segments: 

 disto-dorsal abdominal segment short, weakly sulcate medio-longi- 

 tudinally, the margin rather briefly sinuato-emarginate on each 

 side of the sulcus : supra-anal plate trigonal, briefly and shallowly 

 sulcate proximad: cerci tapering, falciform, relatively thick proxi- 

 mad, the extremity slender: ovipositor one and two-fifths times 

 as long as the disk of the pronotum, strongly compressed, deep, 

 regularly falcate, the dorsal margin serrulate in the greater portion 

 of its length, the denticulations regularly increasing in size distad, 

 ventral margin with recurved denticulations for a short distance 

 distad, apex of the two valves together moderately acute; surface 

 of ovipositor with depressed shagreenous teeth: subgenital plate 

 trigonal, deeply sulcate medio-longitudinally, this bounded laterad 

 by converging, elevated, rounded ridges. 



Cephalic femora very slightly longer than the pronotal disk,, 

 ventro-internal margin armed distad with two to three spines; 

 cephalic tibiae with the auditory foramina elongate elliptical. Cau- 

 dal femora about three-fifths as long as the tegmen, moderately^ 



