Superfamily Argiopoidea 



these species, all that were known at that 

 time, and gave a table for separating the 

 species. 



The following is the most common of 

 our species: 



Oxyptila conspurcaia (O. con-spur-ca'ta). — In 

 this species there is only one spine above on the 

 metatarsus of the first legs, and the tibia of these 

 legs is not spotted. The cephalothorax is reddish 

 yellow, paler in the middle, usually with some 

 silvery white lines; the sides of the cephalothorax 

 are either wholly brown or with two brown stripes 

 on each side, the upper one broadest behind and 

 ending in a darker spot. The abdomen is ir- 

 regularly spotted. The length of the bod)' is one seventh inch. 



Fig. 585. 



TIBIA OF 



FIRST LEG OF 



OXYPTILA 



Genus CORIARACHNE (Co-ri-a-rach'ne) 



The cephalothorax is strongly depressed and flat. The pos- 

 terior row of eyes is strongly recurved, with the median eyes 

 smaller than the lateral and farther from the lateral eyes than 

 from each other. The anterior row of eyes is straight or nearly 

 so, with the median eyes much smaller than the lateral; the eyes 



of this row are usually equidistant. 

 The median ocular area is wider 

 than long. In the more typical 

 species, the lateral eyes on each 

 side are farther apart than are the 

 anterior median and the posterior 

 median eyes; but this is not true 

 of the species described below. 



Three of our species have been 

 placed in this genus; one, C. briin- 

 neipes, is from the West Coast, and 

 one, C. floridana, is from Florida, 

 1 have seen neither of these; the 

 third, the following one, is widely distributed. 



Coriaracbne versicolor (C. ver-sic'o-lor). — The female (Fig. 

 586) is about one fourth inch in length, white or yellowish in 

 colour, and spotted with black and gray. The spots vary greatly 



Fig. 586. 

 CORIARACHNE VERSICOLOR 



531 



