82 PECKHAM. [Vol. 2, 



place. Falces weak, parallel, vertical. Abdomen in the male, 

 with the anterior and posterior segments joined by a long, nar- 

 row neck; in the female, witli a less marked constriction. The 

 coxae and trochanters of the legs are elongated, especially in 

 the male, so as to be visible from above. The integument of 

 the upper surface of the abdomen is hardened into a sort of a 

 carapace, the edges of which are visible when the spider is 

 dried and looked at from the side. Lip as wide as long. Ster- 

 num very narrow. 



Color. $ . The first segment of the cephalothorax is 

 blackish ; there is a white band around the constriction ; the 

 second segment of the cephalothorax, the first of the abdomen 

 and the connecting neck are brownish-yellow ; and the posterior 

 segment of the abdomen is dark brown. The palpi and the 

 third and fourth pairs of legs, excepting the trochanters of the 

 fourth, are brownish-yellow, like the body. The first and 

 second pairs and the trochanters of the fourth are light 

 yellow. 



9 . The anterior segment of the cephalothorax is blackish, 

 the posterior reddish-brown — mahogany color; the anterior part 

 of the abdomen is brownish-yellow, with two or three indistinct, 

 darker bands on each side, coming up from below ; the posterior 

 part is blackish. The first leg is light yellow, excepting the 

 metatarsus and tarsus, which are blackish ; the second is yellow ; 

 the third has the coxa and trochanter very dark mahogany 

 color, the femur a little lighter and the other joints yellow; the 

 fourth has the coxa, the femur, the distal end of the patella 

 and the tibia mahogany color, and the trochanter, the prox- 

 imal part of the patella, the metatarsus and the tarsus yellow. 

 The palpi are yellow. 



Habitat. Chapoda, Brazil, Smith collection, and French 

 Guiana, Taczanowski collection. 



This species has a general resemblance to an ichneumon 

 in the shape of the body and the hang of the legs. It is very 

 much like americana, from which it is best distinguished by 

 the difference in the palpus. 



