'274 PROCEEDINGS OF THE ACADEMY OF [May-Oct., 



for a short distance pai-alleling the discoidal vein, bifurcate then 

 diverging from the main humeral trunk at an angle of sixty degrees 

 and in a fractured fashion reaching the oblique portion of the sutural 

 margin; ulnar vein arcuate toward the humeral trunk, which it 

 closely approaches, distad connected with the proximal ramus of the 

 median vein by a short cross- vein, the ulnar vein with two oblique 

 arcuate rami, which follow the general trend of the extremity of the 

 main ulnar vein, a number of oblique cross-veins between the humeral 

 trunk and the ulnar vein are also present, these having the same 

 trend toward the base as they approach the humeral trunk, a pecu- 

 liarity possessed by all the more prominent rami and cross-veins. 

 Wings with the exposed portion very acute, projecting distad of the 

 tegmina a distance subequal to the length of the pronotal disk. 



Mesosternal lobes elongate, acute-angulate caudad, the angle very 

 narrowly rounded, the external margin of the lobes gently arcuate, 

 the lobes held in a nearly vertical position: metasternal lobes indiv- 

 idually longitudinal, shorter proportionately than the mesosternal 

 lobes, the caudal angle moderately acute, the angle narrowly rounded, 

 the caudal and lateral margins moderately arcuate. Disto-dorsal 

 abdominal segment moderately arcuate about the base of each 

 cercus, the distal margin of the plate dorsad of the supra-anal plate 

 weakly and broadly emarginate, the surface of the plate moderately 

 concave mesad: supra-anal plate trigonal, slightly longer than the 

 proximal width: cerci styliform, regularly tapering from the rela- 

 tively incrassate base to the very slender distal portion, straight: 

 ovipositor with its greatest length equal to four-fifths of the length 

 of the pronotal disk, bent arcuate in proximal third, thence very 

 gently arcuate, the greatest depth of the ovipositor equal to about 

 two-fifths of the ovipositor length, the ovipositor very faintly narrow- 

 ing in the distal half, the extremity obliquely arcuato-truncate, the 

 obliquity towards the dorsal margin, the margin of the apex with 

 deeply cut denticulations, which are larger mesad, other margins 

 of the ovipositor unarmed: subgenital plate small, compressed 

 trigonal, paired carinae converging distad. 



Cephalic femora four-fifths as long as the disk of the pronotum, 

 subcompressed, ventro-cephaUc margin with five spines, genicular 

 lobes bispinose: cephalic tibiae with the auditory foramina having 

 rimate apertures on both faces. Median femora one and one-third 

 times as long as the pronotal disk: median tibiae weakly expanded 

 in the proximal half on the ventral surface, there subcompressed. 

 Caudal femora in length equal to two-fifths of the length of the 



