1913.] NATURAL SCIENCES OF PHILADELPHIA. 107 



ing to the first transverse sulcus, then regularly but not 

 greatly diverging caudad; lateral lobes distinctly longer than 

 deep, the cephalic portion of the ventral margin obliquely 

 emarginate, caudo-ventral angle very broadly rounded. Tegmina 

 in both sexes slightly surpassing the caudal margin of the meta- 

 notum, slightly curved ventrad with the greatest width at the 

 distal third, apex rounded. Prosternal spine erect, conical, not very 

 sharp; interspace between the mesosternal lobes moderately trans- 

 verse; interspace between the metasternal lobes of the usual key- 

 stone shape, much narrower than that between the mesosternal 

 lobes. Ovipositor jaws of the female very slightly compressed, the 

 dorsal pair subequal in depth in the proximal half; supra-anal plate 

 of the male acute trigonal; cerci of the male styliform, reaching 

 about to the apex of the supra-anal plate; subgenital plate with the 

 apex not elevated above the general dorsal margin of the plate, 

 rounded when seen from the dorsum. Cephalic and median limbs 

 proportionately^ more robust in the male than in the female. Caudal 

 femora moderately robust in the male, weaker and smaller propor- 

 tionately in the female, exceeding the apex of the abdomen in both 

 sexes, pagina with the pattern rather coarse but regular and distinct ,^ 

 medio-dorsal carina finely serrulate; caudal tibiae slightly shorter 

 than the femora, armed on the external margin with eight spines^ 

 on the internal with nine spines; caudal tarsi with the third joint 

 appreciably longer than the first. 



General color in the female drab, sprinkled, lined and dotted with 

 blackish, in the male Isabella color marked in the same fashion. 

 An area along the median line of the body almost clear base color 

 in the male, the sides of the proximal two-thirds of the abdomen 

 shining black in both sexes, this area being more extended dorsad 

 in the male. Head with the face naples yellow in the male, dull 

 orange-buff in the female, dull blackish around the bases of the an- 

 tennae; occiput and cheeks prout's brown in the male, Vandyke 

 brown in the female; eyes pale tawny-olive in the male, walnut- 

 brown in the female. Pronotum with the dorsal portion of the lateral 

 lobes dark, median carina blackish, particularly in the male; ventral 

 half of the lateral lobes the same color as the face, limited dorsad 

 by an obtuse angulate patch of blackish. Tegmina prout's brown 

 in the male, walnut-brown in the female. Venter of the abdomen 

 primrose-yellow in the male, raw umber in the female, provided in 

 each sex with a medio-longitudinal shining blackish-ljrown bar 

 reaching to the margin of the subgenital plate; sternal plates mottled 



