116 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXVI. 



arcuate proximad and distad, the median portion very slightly 

 arcuate, sutural margin straight, apex obliquely truncate with the 

 angles narrowly (costal) or broadly (sutural) rounded; anal area 

 very narrow. Wings large, the greatest width contained about one 

 and four-fifths in the length; costal margin straight except for the 

 distal third which is considerably arcuate, apex sHghtly acute-angu- 

 late with the immediate apex rounded, margin of the axillary lobe 

 produced and rounded; posterior axillary area inflated, fenestrate, 

 the cross veins regular, oblique proximad, becoming straighter 

 distad; greater portion of the median area sub-fenestrate, the 

 "panes" subquadrate, translucent and not hyaline as in the axil- 

 lary area. Prosternal spine erect, slender, acute, the immediate 

 apex rather blunt. Mesosternal lobes separated by a slightly longi- 

 tudinal interspace which is somewhat narrower than one 

 of the lobes; interspace between the metasternal lobes 

 shallow, transverse, slightly broader than that between 

 the mesosternal lobes. Abdomen compressed, the dorsum 

 somewhat carinate; supra-anal plate acute trigonal with 

 a deep, high margined medio-longitudinal impression; 

 cerci short, simple, styliform; subgenital plate com- 

 pressed, greatly produced, the apex being developed into 

 an elongate spiniform process, medio-ventral section of 

 the plate with an irregular carina. Cephalic and median 

 limbs rather slender. Caudal femora about three-fifths 

 the length of the tegmina, quite slender, tapering, genicu- 

 lar region rather large, genicular lobes rounded, promi- 

 FiG. i.-JEo- nent, pagina with a rather irregular "herring-bone" 

 LACRis BEL- pj^^^^pj.^^ caHua, particularly the dorsal one, weakly ser- 

 ouTLiNE OF rato-dentate; caudal tibiae almost equaling the femora in 

 HEAD AND jgjjfrth, Tathcr robust proximad and supplied with two 



PRONOTUM to ' r • n • -e 



OF TYPE, compressed, lamellate, apically spmitorm processes, 



^^ ^^ lateral margin with seven short spines, one of which is 



apical, internal margin with the same number, the spines being very 



long, as long as the lamellate processes, proximad, slightly curved, 



decreasing in length distad, the terminal one being very small. 



General color olive green, washed on the median and costal por- 

 tions of the tegmina with very dull and faint wine purple. Head 

 and pronotum with a gradually expanding medio-longitudinal bar 

 of ochraceous-buff on the dorsum; margins of the fastigium, 

 dorsad and caudad of the eyes and the lateral angles of the disk of 

 the pronotum blackish brown; face ochraceous, the carinse lined 

 with brown; a diagonal bar of dull buff extends ventro-cephalad 

 over a portion of the prozonal area of the lateral lobes and the caudal 

 portion of the gense, remainder of the lateral lobes with a broad 

 diagonal subequal bar of olive extending ventro-cephalad, ventro- 



