No. 1.] ATTID.E OF CENTRAL AMERICA. 91 



Tlie male has both cephalotliorax and abdomen dark 

 brown. The cephalothorax has a white band around the lower 

 margin and some patches of white hairs are left on the other 

 parts. The abdomen has a band of white hairs around the 

 front end and two white curved transverse bands over the dor- 

 sum, which grow fainter in the middle line. At each side of 

 these bands and at a little distance from them the color of the 

 integument darkens almost to black. The falces are dark red- 

 dish-brown and are slightly iridescent. The palpi and first legs 

 are reddish-brown, the legs having the femoral joints darker 

 than the others, and bearing three pairs of stout black spines 

 on the under side of the tibia. The other legs have the coxa3 

 and trochanters and, in the case of the third and fourth pairs, 

 the proximal ends of the femora yellow ; otherwise they are 

 reddish-brown above and yellowish below. 



The female which we have has a dark brown integument, 

 both cephalothorax and abdomen showing patches of yellowish- 

 white hairs, which may originally have formed a complete 

 covering. On the abdomen is a pattern of pale bands and 

 streaks, which is shown in the figure. The first leg is dark 

 brown to the end of the tibia, the metatarsus and tarsus being 

 yellow. The tibia and metatarsus have strong spines. The 

 other legs are yellow, banded at the joints, especially in the 

 fourth pair, with black. The palpi are also yellow. 



We have one male and one female from the eastern part 

 of Guatemala. 



This species is easily distinguished from the others that 

 are found in Central America. The falces of the male are ver- 

 tical, and lack the vertical apophysis that usually characterizes 

 this genus. The female differs from that of strenuus in having 

 the cephalothorax proportionately larger and the abdomen pro- 

 portionately smaller than in that species. 



