426 J. H. Erfterton — Canadian Spiders. 



appear on alcoholic specimens that have been rubbed in the bottle 

 with other spiders. The cephalothorax has a narrow light line on 

 each side extending as far forward as the eyes and broken in two or 

 three places. The middle light marking of the cephalothorax is 

 widened in front, opposite the second legs, and ends in a straight 

 line a little behind the e^^es. 



The legs and palpi are regularly ringed with light and dark, 

 darkest toward the base. In the male the tarsus of the palpus is 

 dark, but otherwise it is colored like the female, and not much 

 darker. The abdomen is dark and indistinctly marked. On the 

 under side the colors are lighter. The coxae are very light and the 

 sternum dark. The under sides of the legs are lighter than the 

 upper. 



The epigynum (PI. in, figs. 8e, 8/*) is long and narrow with a 

 single small hollow at the front end; the posterior end varies in 

 shape ; the two figures show extreme forms ; fig. 8/* is the more 

 common, and there are many with the hinder part short, but not 

 contracted at the sides. 



A well preserved male (PI. in, fig. 8) has the light mark of the 

 cephalothorax extended forward so as to cover the top of the head, 

 between the eyes. The middle of the abdomen is covered with 

 light, almost white, hairs in which the spot over the dorsal vessel is 

 outlined in black spots. In the hinder half of this light area are 

 four or five transverse black marks. On the legs the black and 

 white rings are more distinct than in the females, especially on the 

 femora. The male palpi (PI. iii, figs. 8a, 85) are long, with the 

 tibia and patella as long as the tarsus. The palpal organ projects 

 from the tarsus at the base, and the double basal hook is long and 

 conspicuous. The lower part of the hook is pointed with the point 

 slightly turned forward. The upper part is of nearly the same 

 width its whole length, curved inward, and turned toward the 

 middle of the outer side of the tarsus. At the end of this hook are 

 a number of short black teeth. The tube tapers to a point and is 

 nearly straight for half its length. Over the end of the tube is a 

 thin flexible appendage turned outward at the end and irregularly 

 toothed along the outer edge. This male agrees closely with 

 Thorell's original specimen. Two males from another locality, near 

 Laggan, have the male palpi slightly different. PI. in, figs. 8c, 8c?. 

 The basal part of the palpal organ is much more prominent, the 

 hook shorter and stouter, and the end of the tube flattened and bent 

 in a short curve at the tip. 



