350 NEW TROPICAL AMERICAN ORTHOPTERA 



Disto-dorsal abdominal segment produced, strongly arcuate in transverse 

 section, the distal margin deeply divided by a V-emargination into two sub- 

 vertical, compressed lamellate lobes, which in general narrow distad, are arcuate 

 ventrad with the apex rotundato-rectangulate, the dorso-internal margin of the 

 lobes slightly thickened and sinuate, a distinct impression mesad on the main 

 dorsal section of the segment: supra-anal plate relatively small, elongate, lin- 

 guiform: cerci elongate, slender, tapering, arcuate, the convexity ventrad, 

 gently inbowed, the extremity slightly thickened, subdepressed, the apex in- 

 ternal in position, acute, chitinous and with two separate, small, recurved teeth 

 on the ventral surface ; at the base of this distal thickening on the ventral surface 

 is placed transversely a lamellate disk-like structure, which has its periphery 

 approximately semicircular, but which is only basally attached externally, in- 

 ternally the peripheral margin being carried by the acute, curved, free portion 

 of the lamellation; surface of the lamellation with concentric radiating lines: 

 subgenital plate greatly produced, surpassing the apices of the cerci, from a 

 moderatelj" wide base it narrows, then expands gently, and again narrows 

 distad, the lateral margins sigmoid and formed by the paired thickened rods 

 which extend from the relatively broad base to the styles; distal extremity 

 very narrowly and deeply emarginate, thus causing the disto-lateral portions 

 of the plate to be elongate lobiform; ventral surface of the emargination with 

 a strongly pronounced but delicate medio-lougitudinal carina; styles relatively 

 short, narrowly rounded at their distal extremity, faintly arcuate in form, 

 dorso-intcrnal surface deeply concave, ventro-external surface correspondingly 

 convex. 



Cephalic femora alwut five-sixths as long as the disk of the pronotum; 

 cephalic tibiae distinctly siu"passing the femora in length, tympani apert on 

 both faces: median femora equal in length to the combined length of the head 

 and pronotum; median tibiae faintly surpassing the femora in length. Caudal 

 femora relatively robust at the base, tapering to the relatively slender dis- 

 tal third; genicular lobes slightly acute, non-spinose; external face of the 

 femora with a weak herring-bone impressed pattern; both ventral margins 

 sparsely spined distad; caudal tibiae surpassing the caudal femora by nearly 

 one-half the dorsal length of the pronotal disk, dorsal surface moderately flat- 

 tened, ventral section narrowed. 



General color between honey yellow and ohve ocher, the face nearly as pale 

 as cartridge bufT. This shade is probably not the original color, especially on 

 the tegmina, which probably were deep chrysolite green, as a consideralile 

 section along the sutural margin and at the apex is of that shade. The limbs 

 are glass green with a brownish tinge. The eyes are mars brown. Pronotum 

 with the lateral angles of the disk chamois color. 



Length of body (to apex of disto-dorsal abdominal segment), 21.4 mm.; 

 length of pronotum, 6; greatest (caudal) width of pronotal disk, 4.3; length of 

 tegmen, 37.8; greatest width of tegmen, 8; length of caudal femur, 20.4; length 

 of subgenital plate (exclusive of styles), 6.5. 



The type of this remarkable species is unique. 



