(91) 



longer than the first: third sub-equal to the first. Flagellum equal to the 

 peduncle and consisting of about twelve segments. 



First three segments of the antennae short ; fourth as long as the three 

 preceding; fifth as long as the second, third and fourth together ; flagellum 

 long, reaching baok three-fourths the length of the thorax, and consisting of 

 about seventy-five segments. 



Right mandible with a single dentigerous lamella furnished with four 

 obtuse teeth. Left mandible with two dentigerous lamella;, each with four 

 obtuse teeth Palpus consisting of three segments; the first clavate ; the 

 second widest in the middle, its inner margin being straight and its outer 

 formed by two straight lines meeting at an obtuse angle at the middle of 

 the segment ; last segment falcate, furnished with numerous plumose hairs 

 along its outer concave margin. 



Palpus of maxilliped with five segments. The first very short. The 

 second three times as long as the first and rather broader than long, with 

 the inner margin straight and the outer curved. Third segment short, 

 broadest just above the proximal articulation, becoming narrower distally. 

 Fourth segment clavate and bent inward at the base. Last segment short 

 and only half as wide as the preceding. All the segments provided with 

 scattered hairs along their outer margin and crowded with similar hairs 

 along the inner margin. 



Propodus of the first pair of legs in the male ovate, nearly two-thirds 

 as wide as long ; the palmar margin slightly convex, armed with a stout 

 conical tooth in the middle, and at the posterior angle with another short ob- 

 tuse one, surmounting a rough process of the body of the propodus. There 

 are thus really two stout teeth on this margin. Dactylus with its claw 

 reaching beyond the palmar margin, curved strongly, and armed with about 

 fifteen teeth appressed towards the tip. 



In the female the first propodus is more slender, being one-half as wide 

 as long. Palmar mai'gin nearly straight and armed with several slender 

 spines, and near the posterior angle with one moderately strong acute tooth. 

 Dactylus long, curved, and armed with about eight teeth longer than those 

 of the male. Dactylus terminating in a claw, which extends beyond the 

 palmar margin. 



Anterior genital appendages of the male consisting each of two seg 

 ments, the fir.t three-fourths the length of the second, sub-quadrate, with 

 four curved spines along the inner margin ; the second segment ovate, with 

 an obliquely truncated extremity, which, as well as the adjacent parts of 

 the inner and outer margins, is sparsely cilated. Posterior genital ap- 

 pendages consisting each of a peduncle and two rami. The peduncle about 

 as broad as long, outer margin straight, inner margin approaching the 

 outer distally by a broad curve. Inner ramus navicular, notched at the 

 distal extremity. Outer ramus bi-articulate ; first segment triangular ; sec- 

 ond linguiform, twice as long as broad, with the outer margin and the lower 

 portion of the inner margin furnished with long plumose hairs. Caudal 

 stylets of the male as long as the abdomen , the peduncle a little less than 

 two-thirds as wide as long, expanding distally, where it is excavated for the 

 insertion of the rami. The rami are ovate, moderately acute, width about 

 one-third of the length : the outer ramus about two-thirds as Ions as the 



