116 ORTHOPTEROUS GROUP INSARAE 



general form of the pronotum subsellate, the dorsal line nearly straight when 

 seen from the side, appreciably ascending in the vicinity of the cephalic 

 margin; surface of the disk of the .pronotum greatly constricted mesad, the 

 greatest caudal width of the disk approximately two-thirds the length of 

 the disk; cephalic margin of disk sinuato-truncate with a median rudimen- 

 tary tubercle, caudal margin rectangulate with the immediate angle faintly 

 produced and narrowly rounded, no trace of lateral angles or shoulders 

 present; transverse sulcus forming an obomegoid figure on the disk; lateral 

 lobes with the greatest dorsal length appreciably surpassing the greatest 

 depth of the same, cephalic margin sinuate, ventro-cephalic angle roundly 

 rectangulate, ventral margin sinuate, ventro-caudal angle in general obtuse 

 with the immediate angle rounded, caudal margin oblique, subsinuately trun- 

 cate, humeral sinus decided but not deep, roundly obtuse-angulate, callosed 

 caudal section of the lateral lobes rather narrow and not sharply defined. 

 Tegmina equal to about one and two-thirds times the length of the body, 

 moderately narrow, the width at the distal fourth contained about seven 

 and one-half times in the length of the same and distinctly greater than the 

 width at the proximal third; lobate marginal field very short, but little longer 

 than the stridulating field, the margin sharply sheared distad; distal portion 

 of costal margin gently arcuate to the narrow but rounded apex; discoidal 

 vein with three rami, the proximal one diverging slightly proximad of the 

 middle of the tegmen ; stridulating field distinctly shorter than the pronotal 

 disk, its greatest width about two-thirds of its length, free margin produced 

 at the apex of the stridulating vein into an acute process which is arcuate 

 proximad and nearly straight transverse distad, the immediate apex narrow- 

 ly rounded, free margin distad of process sinuate, the field narrowing distad, 

 anal vein moderately arcuate, stridulating vein slightly oblique, robust, sub- 

 arcuate, speculum ' subtrigonal, rather small. Exposed portion of wings 

 about two-fifths the tegminal length. Abdomen with the process of the 

 proximo-dorsal segment considerably elevated, not recurved, in fact much 

 as in^. gracilipes constricta; disto-dorsal abdominal segment strongly trans- 

 verse, distal margin truncate laterad, strongly brace-shaped emarginate 

 mesad for half the depth of the segment; supra-anal plate with its base recess- 

 ed within this emargination of the preceding segment and its length greater 

 than its width, lateral margins subparallel, apex bluntly, roundly and broads 

 ly obtuse-angulate, surface with a moderately deep medio-longitudinal sulcu- 

 for the greater portion of the length of the plate, distad thickly pilose. Cerci 

 moderately robust, tapering, at about the distal third strongljr recurved at a 

 right angle, the extremity also directed somewhat dorsad, the apex acute, 

 slightly depressed; subgenital plate very broad, the proximal width subequal 

 to the length, lateral margins narrowing distad, distal margin subtruncate 

 with a very faint median angulate emargination, lateral styliform processes 

 brief. Cephalic and median femora with bispinose genicular lobes, caudal 

 femora with unispinose genicular lobes. Cephalic femora more than twice as 

 long as the i)ronotal disk; cephalic tibiae with elliptical foramina. Median 



