1920.] NATURAL SCIENCES OF PHILADELPHIA. 223 



angulate; cerci moderately surpassing the subgenital plate, subequal 

 in width, moniliforni, slightly depressed, apical joint bluntly acum- 

 inate: internal genital plates which are apparent from the dorsum, 

 lying in the hollow of the subgenital plate, are: on the right side a 

 depressed, broad, narrowing and incurved plate, the apex of which is 

 bluntly acuminate and slightly decurved; on the left and extending 

 over to the center is a very broad, strongly depressed plate, which is 

 in general obliquely subtruncate at the distal extremity and from the 

 dorso-distal portion of which arises an erect, falcate process, which is 

 curved to the left; ventrad of this plate lies a narrow, sinuato-falcate 

 titillator, the apex of which is bluntly acuminate and reaches to the 

 dextral internal plate: subgenital plate broad, depressed, saucer 

 shaped, the margin sinuato-arcuate when seen from the dorsum, 

 styles represented sinistrad by a strong acuminate appendage, the 

 dextral equivalent of which is, possibly teratologieally, a mere node. 



Cephalic coxae subequal to the pronotum in length, subcompressed, 

 external margin lamellato-carinate, all margins very finely and 

 sparsely serrulate: cephalic femora nearly one and one-fifth times 

 the length of the pronotum, distinctly compressed, the general form 

 of the femur elongate sub-triquetrous, the greatest femoral depth 

 contained about three times in the length of the same; dorsal margin 

 of the femur lamellato-carinate, faintly sinuate; external face obso- 

 letely granulose; ventro-external margin with five relatively short, 

 conical spines, the distal one on the genicular lobe; ventro-internal 

 margin with thirteen conical spines, which are arranged according 

 to length in the following biseriate formula — (reading proximad) 

 I lililililili; discoidal spines four in number, the second (reading 

 proximad) much the longer; proximal section of the ventral surface 

 with a median row of tubercles; cephalic tibiae (aside from the 

 apical spur) half as long as the femora, moderately compressed, 

 subcarinate on the extensor surface, external margin with a series of 

 six distinct, adpressed spines on the distal half, these increasing in 

 length distad and represented proximad by weak crenulations; 

 internal margin with a continuous series of ten spines, which regu- 

 larly increase in length distad, apical claw greatly elongate, falci- 

 form: cephalic metatarsi but little shorter than the tibiae, the re- 

 maining joints of the cephalic tarsi but slightly shorter than the 

 metatarsi. Median and caudal hmbs of medium length, relatively 

 slender. 



General color ochraceous-buff to ochraceous-tawny, very thickly 

 ^and in general uniformh^ overlaid with a nebulose or punctulate 



