118 PROCEEDINGS OF THE ACADEMY OF [Jan., 



not particularly broad, expanding distad, anal vein moderately 

 arcuate, stridulating vein strongly arcuate proximad, straight distad, 

 tympanum proper rather large, subtrigonal. Abdomen with the 

 disto-dorsal abdominal segment having the margin sinuately arcuato- 

 truncate, moderately arcuato-emarginate laterad; supra-anal plate 

 tongue-shaped; cerci regularly arcuate inwards, the proximal portion 

 of the shaft rather heavy, somewhat tapering, median lobe placed 

 on the dorsal surface, short, depressed, slightly concave ventrad, 

 when seen from the dorsum with the external margin arcuate, 

 internal margin straighter, distal extremity of the lobe weakly 

 sul^truncate, the lobe narrowing along the same lines as the proximal 

 portion of the shaft of the cercus, distal portion of shaft more sharply 

 arcuate, subdepressed, acute subaciculate, the distal portion (distad 

 of tooth) subequal in length to the proximal portion; subgenital 

 plate moderately produced, elongate, lateral margins moderately 

 converging on median half, subparallel on distal fourth, distal margin 

 with a V-shaped median emargination which occupies not more than 



Figs. 26 and 27. — Ventral outline of subgenital plate of topotype of Dichopetala 

 emarginata (26) and type of D. gladialor (27). (X 4.) 



one-half of the margin, laterad of the emargination subtruncate, 

 distal portion of the ventral surface of plate tricarinate, mesad and 

 laterad, the lateral carinse following the lines of the distal fourth of 

 the lateral margins, the oblique portion of the lateral margins thick- 

 ened and subcarinate. Cephalic femora about two and one-half 

 times the length of the disk of the pronotum; cephalic tibiae with the 

 foramina elliptical. Median femora but slightly less than twice the 

 length of the head and pronotum. Caudal femora nearly one and 

 one-half times the length of the body, moderately inflated in proximal 

 ■ half. 



Allotype: 9 ; Same data as the type. 



Description of Allotype. — The following characters are those of 

 difference from the type. Size large; form moderately robust. Head 

 with eyes slightly less prominent and more elliptical than in the 

 iiiale, their depth contained one and one-half times in that of the 

 infra-ocular portion of the gcnae. Pronotum with the disk less 

 deplanate than in the male and nearly straight when seen from the 



