1905.] NATURAL SCIENCES OF PHILADELPHIA. 453 



ventro-cephalic angle obtuse, ventro-caiulal angle obtuse, caudal mar- 

 gin rotundato-emarginate. Tegmina two-thirds (male ) to three-fourths 

 (female) the length of the pronotum, enlarged distad, the greatest 

 width being in the distal third. Metanotum and proximal abdominal 

 segment with a distinct median carina which is developed on the meta- 

 notum and proximal segment of the abdomen into a compressed caudal 

 process, similar but smaller than on the pronotum. Abdomen slightly 

 but distinctly compressed. Apex of the male abdomen not recurved, 

 the appendages very small; supra-anal plate trigonal, the apex slightly 

 produced and narrowly rounded; cerci very short, thick and blunt, 

 hardly longer than broad; subgenital plate compressed, rather deep, 

 blunt. Prosternal spine erect, slender, acute. Interspace between the 

 mesosternal lobes subquadrate in the male, slightly transverse in the 

 female, the angles verj^ narrowly rounded ; interspace between the 

 metasternal lobes very narrow, strongly longitudinal in the male, 

 very slightly longitudinal with the angles rectangulate in the female. 

 Cephalic femora three-fourths (male) to four-fifths (female) the length 

 of the pronotum, evenly enlarging distad, especially in the female, 

 cephalic genicular lobe slightly larger than the caudal; tibise about 

 equal to the femora in length; tarsi little shorter than the tarsi, distal 

 joint about half again as long as the median and proximal joints to- 

 gether. Median limbs similar to the cephalic l^ut slightly larger. 

 Caudal femora robust, pregenicular constriction marked, length dis- 

 tinctly (male) or almost (female) equal to the length of the mesonotum 

 and abdomen, greatest width in the proximal third and contained about 

 three times in the length, dorsal carina irregularl}^ and very weakly 

 serrulate, pattern of the pagina regularly but not deeph^ impressed, 

 genicular region distinctly arched, genicular lobes rectangulate; caudal 

 tibiae slightly shorter than the femoral length, rather heavy, slightly 

 sinuate, the external margin with six spines, no apical spine present, in- 

 ternal margin with seven spines including the apical spine; tarsi less 

 than half the length of the tibiae, the distal joint only slightly longer 

 than the proximal; arolia rather small. 



General colors, above varying from prout's brown to raw umber, 

 laterad shining seal brown. Head with all from the fastigium and 

 dorsal margin of the usual portion of the postocular bar ventrad seal 

 brown, a line on the clypeal margin, a line immediately caudad of dorsal 

 section of the eye and the fastigial and dorsal frontal ccsta carinse dull 

 ochre yellow ; eyes russet ; antennae varying from seal brown to ferrugi- 

 nous, a slight distance proximad of the apex annulate with buff. Pro- 

 notum with lateral angles slightly lighter than the dorsiun and more of 



