No. 1.] ANT-LIKE SPIDERS OF THE FAMILY ATTITIE. 23 



men is truncated in front ; its shape is oval, and there is a con- 

 striction in the anterior third which seems to be deeper in 

 the female than in the male. The falces in the male are hori- 

 zontal and are semi-circular in shape, the line from the insertion 

 to the extremity forming a curve. They are flattened above 

 and on the inner faces. The fang is long. The falces of the 

 female are short, stout and vertical. The lip is much longer 

 than wide and the sternum is narrow. 



Color. The cei^halothorax is dark brown, thinly covered 

 with minute yellowish-white hairs, and having a white band 

 around the constriction. There are some white hairs around 

 the eyes of the first row and on the clypeus, and a white line 

 around the lower margin. The falces are medium brown, 

 rugose, somewhat iridescent, with short, white hairs on the 

 upper surface. The legs of the first and second pairs are 

 medium brown, the femoral much darker than the other 

 joints. The third and fourth pairs are much darker than the 

 first and second, and the trochanter of the fourth is white. 

 The abdomen is dark brown, covered with yellow hairs, except- 

 ing at the constriction, around which is a band of snowy white 

 hairs. 



Variety rufula has the cephalothorax light yellowish-red, 

 with the eyes on black spots, and the legs yellow, excepting the 

 tarsus of the first, which is blackish. The first row of eyes 

 seems to be not quite so much curved downward as in tristis. 



S.4LTICUS SIMPLEX N. SP. 



PI. I., Fig. 4, male ; 4a, 4l5 and 4c, male palpus. 

 S. Total length, 7 mm. Falces, 2.1 mm. 



Cephalothorax: Length , 4 mm ; width, 2 mm. 



Legs, 4132, about equally stout. 



1st leg longer than 2d by tarsus, metatarsus and 



one-third of tibia. 

 4th leg longer than 3d by tarsus and metatarsus. 

 Cephalothorax rather high, the thoracic part sloping off in 

 all directions from the dorsal eyes. Quadrangle of eyes one- 

 fourth wider than long, much wider behind than in front, 



