114 ORTHOPTEROUS GROUP INSARAE 



D. Margin of the stridulating field of the male tegmina gently 

 arcuate and not at all projecting at the apex of the 

 stridulating vein. Pronotum very short and broad. Prox- 

 imo-dorsal abdominal segment of male with process. 

 (Subgenital plate of male weakly tricarinate ventrad. 



Ovipositor very broad) insaroides new species 



DD. Margin of the stridulating field of the male tegmina 

 appreciably produced though rounded at the apex of the 

 stridulating vein. Pronotum more elongate. ^^ Proximo- 

 dorsal abdominal segment of male with or without process. 

 E. Stridulating field of male tegmina elongate, subequal 

 ■ to the disk of the pronotum in length, broad. Prono- 

 tum deeply sell ate; lateral lobes quite elongate, broad- 

 ly rounded caudad; texture of pronotum and tegmina 

 coriaceous. Abdominal segments with margins strong- 

 ly crenulate. Ovipositor broad. (Subgenital plate of 

 male deeply V-emarginate, ventral surface of plate tri- 

 carinate. Female macropterous.) 



phantasma new species 

 EE. Stridulating field of male tegmina more or less de- 

 cidedly shorter than the length of the pronotal disk, 

 as a whole narrower. Pronotum not deeply sellate ; lat- 

 eral lobes at most but moderately elongate, oblique 

 caudad; texture of pronotum and tegmina not coriace- 

 ous but as in other species of the genus. Abdominal 

 segments with margins not crenulate. Ovipositor 

 never broad. 

 F. Stridulating field of the male tegmina not sharply 

 narrowing distad, but slightly produced at the apex 

 of the stridulating vein. Female with the tegmina 

 not surpassing the apex of the abdomen. 



/ semialata new species cf & 9 ^^ 

 \ arachnopyga new species 9 '^^ 

 FF. Stridulating field of male tegmina sharply nar- 

 rowing distad, considerably produced at the apex 

 of the stridulating vein. Female with the tegmina 

 surpassing the apex of the abdomen. 



^^ The female of semialata approaches the opposite category in this res- 

 pect, but the ovipositor in that form is far slenderer than in insaroides. 



^* The females of these species- can be readily separated as follows: 



Ovipositor over twice as long as deep; caudal margin of pronotal disk 

 arcuate. semialata. 



Ovipositor not more than twice as long as deep; caudal margin of prono- 

 tal disk rectangulate. arachnopyga. 



