156 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



the female; median carina very low, slightly irregular, subobsolete 

 between the sulci, lateral angles not marked, a moderate shoulder 

 present on the metazona; transverse sulci three in number, the 

 caudal one the deeper, the metazona very slightly longer than the 

 prozona; lateral lobes about as deep as long, ventral margin well 

 emarginate cephalad, arcuate caudad, the ventro-caudal angle 

 rounded obtuse-angulate. Tegmina elongate, exceeding the apex of 

 the abdomen by about the length of the pronotum, broad, the greatest 

 width contained about four and one-half times in the tegminal length, 

 this greatest width being in the proximal third ; costal lobe moderately 

 prominent, the costal margin well arcuate in the proximal fourth, 

 apex considerably oblique truncate, the extreme angle blunt rectan- 

 gulate. Wings reaching very nearly to the apex of the tegmina. 

 Prosternal spine rather slender, acute, slightly retrorse; interspace 

 between the mesosternal lobes dstinctly longitudinal, 

 rather sharply (male) or slightly (female) narrowed 

 cephalad of the middle; mesosternal lobes subcontiguous 

 (male) or separated by a subquadrate interspace (female). 

 Abdomen slightly carinate, moderately compressed; 

 supra-anal plate of the male produced trigonal, the mid- 

 dle of the sides with a small triangular projection which 

 is excavate dorsad, an angulate impression with its apex 

 cephalad extends across the plate from one of these pro- 

 jections to the other, the distal portion of the plate 

 slightly compressed, the apex rounded; cerci of the male 

 not quite reaching to the apex of the supra-anal plate, 

 FiG.37.-ii<)MAL- simple, substyliform, the proximal three-fifths subequal in 

 SORDID AT us. width; subgenital plate of the male strongly compressed 

 Dorsal out- from about the tips of the cerci, produced, the margins 



LINE OF HEAD j. 1_ C j.1 • 1 j. 1 1 • 



AND PRONo- arcuate when seen rrom the side, apex acute; dorsal ovi- 

 TUM OF MALE, positor jaws of the female with the margins unarmed. 

 ^"^ ^^^ Cephalic and median limbs rather slender, of median 



length. Caudal femora slightly exceeding (male) or equalling"(female) 

 the apex of the abdomen, well inflated proximad, the greatest width 

 contained three and three-quarter times in the length, medio-dorsal 

 carina serrate, pattern of the pagina regular and moderately close; 

 caudal tibise distinctly shorter than the femora, somewhat sinuate 

 the external margin armed with nine spines, the external apical 

 spine present, the internal margin with ten spines. 



General colors isabelline, wood brown, and russet, mottled and 

 clouded one on the other, the only marked color pattern being on the 

 male, this consisting of small spots of prout's brown on the dorsum of 

 the pronotum and two quadrate spots of the same color on the 

 proximal two-fifths of the dorsal face of the caudal femora. Caudal 

 tibia? ochraceous, the spines tipped with black. The tegmina have a 

 number of subobsolete oblique linear clouds of prout's brown crossing 

 their median and discoid al areas. 



