330 NEW TROPICAL AMERICAN ORTHOPTERA 



the dorsum, reniform in basal outline, depth subequal to that of the infra- 

 ocular sulcus: antennae in length equal to about five-sixths of the greatest 

 length of the dorsum of the pronotum, moderately depressed, apex bluntly 

 acuminate. 



Pronotum with median carina strongly elevated and regularly arcuate, the 

 highest point of crest above the caudal angles of the lateral carinae equal to 

 three-fifths the greatest width of disk across these angles, caudal portion of 

 median crest crenulate, elsewhere the margin is smooth, with principal sulcus 

 deeply and narrowly bisecting the same, the sulci of prozona (two) intersecting 

 but not dividing the crest; greatest width of disk (across the caudal angles of 

 the lateral carinae) contained nearly twice in the greatest length of the same; 

 cephalic margin of disk rectangulate mesad, the lateral portions of this margin 

 gently concave; caudal margin of disk elongate produced acuminate, the lat- 

 eral portions of the margin weakly concavfe; lateral carinae of the disk decided, 

 regularly diverging caudad to the distinct angle immediately before the caudal 

 margin is reached, these margins bluntly crenulato-serrulate; surface of the 

 disk with regularly placed elevated spiculate points: lateral lobes of pronotum 

 with greatest depth equal to three-fourths of the greatest dorsal length; cepha- 

 lic margin of lobes weakly sinuate, ventro-cephalic angle obtuse, ventral mar- 

 gin obUquely sinuato-truncate cephalad, weakly arcuate caudad, ventro- 

 caudal angle rounded, caudal margin of the lobes obliquely concavo-truncate; 

 surface of the lobes appreciably concave immediately ventrad of the lateral 

 carinae of the disk. Tegmina very faintly surpassing the apices of the caudal 

 femora, of the form usual in the genus, the greatest width of tegmen contained 

 four and one-half times in the greatest length of the same; costal margin with 

 a decided basal lobe at proximal fourth, apex rectangulate, well arcuate on 

 costal side, oblique truncate on sutural side, sutural margin straight in greater 

 part; secondary venation and reticulation involved and deUcate, no inter- 

 calary vein present. Wings reaching to the apices of the tegmina when the 

 organs of flight are in repose, when expanded the wings are relatively narrow, 

 the greatest width contained nearly twice in the greatest length of the same; 

 apex slighth^ acute, distal margin of anterior field obUque truncate; distal 

 margin of axillary field strongly arcuate sub-lobate; peripheral margin of 

 radiate field weakly crenulate, becoming crenate distad. Prosternal spine 

 strongly compressed, in distal section slightly expanded cephalo-caudad, the 

 apex slightly acute and caudal in position: interspace between the mesosternal 

 lobes distinctly narrower than the individual lobes, subquadrate, the point of 

 least width slightly cephalad of the middle, meso-caudal angle of lobes obtusely 

 rounded: interspace between the metasternal lobes moderately transverse, 

 short, slightly narrowed caudad. 



Ovipositor jaws short, robust, distad sharply curved dorsad (dorsal valves) 

 or ventrad (ventral valves). 



Cephalic and median limbs rather slender, for the relatively heavy body of 

 the insect. Caudal femora equal in length to slightly more than one-half of 



