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



ders faintly bowed outward mesad, but the cephalic width is sub- 

 equal to that caudad; in transverse section the disk is arcuato- 

 deplanate: cephalic margin very faintly and broadly arcuato-emar- 

 ginate; caudal margin weakly bisinuate-laterad, very slightly and 

 broadly arcuato-angulate ; cephalic margin rather narrowly, caudal 

 margin more broadly, cingulate: surface with a narrow medio- 

 longitudinal line, which is delicately fiUform cephalad and caudad 

 more broadly and conspicuously indicated; pyriform impressions 

 distinct, rather large, moderately elongate, more approximated than 

 usual; lateral lobes strongly longitudinal, the greatest depth of the 

 lobes contained slightly more than twice in their length, the depth 

 in general subequal; ventro-cephalic angle rounded rectangulate, 

 ventral margin straight, horizontal for two-thirds of its length; 

 ventro-caudal angle obUquely rotundato-truncate, passing into the 

 caudal margin; surface of the lobes with the point of impression 

 ventro-caudad. 



Tegmina reaching to the apex of the abdomen, elongate, slender, 

 lateral borders of the dorsal field parallel: costal margin straight; 

 mediastine vein with six oblique rami, three of which are short 

 and distal and three elongate and proximal in origin; marginal field 

 with one free vein proximad; humeral and discoidal veins follow- 

 ing the curve of the mediastine vein, simple: dorsal field narrow, 

 its greatest width contained about five and a half times in the great- 

 est length of the same; median vein straight, with two poorly de- 

 fined rami distad; ulnar vein bifurcate; simple anal and two axil- 

 lary veins unbranched, regularly placed, nearly longitudinal; veins 

 of the dorsal field almost longitudinal, subparallel, the interspaces 

 with numerous, generally irregular, cross-veins, which are never as 

 distinct as the principal veins and rarely form regularly shaped 

 areolae. Wings, when closed, with their folded tips very briefly 

 surpassing the tegmina. Cerci faintly more than twice as long as 

 the pronotum, tapering, supphed with rather short hairs and elongate, 

 more erect, hairs: ovipositor slightly surpassing the body in length, 

 very slender, weakly compressed, in lateral outline weakly sinuate 

 proximad, moderately curved dorsad in distal three-fifths; surface 

 of the lateral aspects inicroscopically rugulose; distal valves little 

 inflated, strongly acuminate, ventral surface of valves with a series 

 of weakly recurved, serrate teeth, these decreasing in size distad. 



Cephalic and median limbs moderately robust, rather short ; cephalic 

 tibiae imperforate, cephahc and median tarsi short. Caudal femora 

 but faintly shorter than the tegmina, moderately robust, regularly 



