Peclcliam — Spiders of the Family Atiidae. 297 



This species is distinguished from all others by the longitud- 

 inal bands of white hairs on the iridescent green falces. ' 



We have one male sent to us by Mr. J. B. Tyrrell, from the 

 Canadian Rocky Mountains. 



Phidippus Worlcmanii, sp. nov. 

 PI. XXIV, figs. 5-5a. 



This is a large species, the colors being gray, black, and white. 

 ?. Length, 14.5 mm. Legs, 4123. 



The posterior thoracic part and the cephalic plate are black, 

 the cephalic plate having a white spot in the middle. A wide 

 band of white hairs crosses the clypeus, occupies the sides of the 

 cephalic and anterior thoracic parts, and passes across the 

 thorax behind the dorsal eyes. There are two tufts of black 

 hairs on each side of the head. The abdomen is gray. Down 

 the center is a scalloped, longitudinal black band, on which is a 

 large triangular white spot, and further back, two pairs of white 

 bars which touch the gray color of the sides. On each side is 

 a pair of oblique white bars. The falces are bronze green. 

 The palpi are yellowish, with white hairs. The first, second 

 and third legs, excepting the metatarsi and tarsi, are rufus, the 

 metatarsi being yellow except the distal third, which is rufus, 

 and the tarsi being all yellow, excepting those of the first pair, 

 which have a dark ring in the middle. The fourth leg has the 

 femur and patella rufus, the tibia and metatarsus with the prox- 

 imal half light colored, and the distal half dark brown, and the 

 tarsus entirely light colored. All the legs are thinly covered 

 wdth short white hairs. 



We have a single female, in the Marx Collection, marked 

 !N^orth America. 



This species is very close to farneus, but the two pairs of 

 white bars on the hinder part of the abdominal black band are 

 transverse, not oblique, and are further apart. Farneus , more- 

 over, lacks the white band on the cephalothorax. 



