JAMES A. G. REHN 359 



humeral trunk strong, sigmoid; median vein diverging faintly proximad of 

 proximal third of the tegmen, bifurcate, its rami reaching sutural margin, 

 the sutural ramus connected with the anal vein by a short nervure; anal vein 

 biramose, the vein not straight: stridulating field relatively narrow and elongate, 

 its greatest width contained more than three times in the greatest length of the 

 same, the free margin subarcuate; stridulating vein short, thick, with the 

 accompanying vein equally long and nearly as thick; stridulating field of right 

 tegmen coriaceous, the triangular area non-hyaline. Wings with normally 

 exposed portion slightly longer than the pronotal disk, very acute; greatest 

 widthof expanded wing contained two and one-third times in the greatest length 

 of the wing. Prosternum unspined: mesosternal lobes parallel; external margin 

 straight caudad, arcuate cephalad; caudal angle acute with the immediate 

 angle rounded, the lobes ventro-lateral in trend: metasternal lobes broader 

 than the mesosternal lobes; external margin strongly arcuate cephalad, straight 

 converging caudad; caudal angle rectangulate, trend of lobes as on the meso- 

 sternum. 



Disto-dorsal abdominal segment transparent, the lateral section deflexed and 

 vertical; distal margin gently arcuate produced mesad: supra-anal plate elon- 

 gate trigonal, strongly reflexed: cerci moderately arcuate, relatively slender, 

 tapering, the distal extremity slightly enlarged and subcompressed, the 

 extremity rounded ventrad, rounded acute-angulate dorsad, the external face 

 of apex with an adpressed, claw-like spine, not surpassing the main apex: 

 subgenital plate compressed, boat-shaped, with a distinct median carina, 

 produced caudad into a pair of substyliform and styliferous processes, be- 

 tween which the distal margin is deeply semi-elliptical emarginate; styles but 

 little longer than the processes bearing them, on internal face concave, ex- 

 ternal fa( e convex, apices narrowly rounded. 



Cephalic femora very slightly shorter than the length of the pronotal disk, 

 ventro-cephalic margin with one to two small spines distad: cephalic tibiae 

 appreciably surpassing the cephalic femora in length, with both faces of tym- 

 panum apert. Median femora slightly longer than the length of the head and 

 pronotum combined, ventro-cephalic margin with three to five small sjjines. 

 Caudal femora about three-fifths as long as the tegmina, moderately com- 

 pressed, fairly robust proximad, external pattern weakly indicated and ir- 

 regular; caudal genicular lobes bispino.se; ventro-external margin with eight 

 to eleven spines, ventro-internal margin with seven to eight spines: caudal 

 tibiae surpassing the femora by about one-half the length of the pronotal disk, 

 heavy, subcompressed, narrowing in distal fourth, strongly quadrate in sec- 

 tion, margins strongly spined. 



General color of dorsum of pronotum, tegmina and exposed portion of wings 

 courge green. General color of head and lateral lobes of pronotum chalcedony 

 yellow to lumiere green, of the pleura, sterna and abdomen wax yellow to 

 amber yellow. Eyes speckled pale olive brown and chestnut brown. Anten- 

 nae passing from the general color of the head proximad, through ferruginous 

 and fuscous to blackish fuscous distad, proximad the segments are individually 

 narrowly annulate with bufTy. Tegmina with the costal thickened nodes 



TRANS. AM. ENT. SOC, XLIV. 



