Superfamily Argiopoidea 



Olios abnormis (O. ab-nor'mis). The male measures from 

 one third to one half inch in length; the female has not been 

 described. In the male the entire cephalothorax, mouth- 

 parts, and legs are brownish yellow, with the sternum lighter; 

 the abdomen is yellow, with a brown or brown-bordered 

 longitudinal dorsal band, behind which there may be indistinct 

 chevrons. 



This species was described from New Mexico. 



Olios jasciculatus (O. fas-cic-u-la'tus). — Only the female 

 of this species has been described. It is a large spider, measuring 

 one inch in length. The cephalothorax, pedipalps, and legs are 

 reddish brown; but the cephalothorax is darker than these appen- 

 dages; the chelicerae are nearly entirely black. The abdomen 

 is yellowish brown, with several brown spots on the middle line, 

 and on the hind part an indistinct lighter chevron. 



This species occurs in the Southwestern States. 



Family CTENIDiE (Cten'i-dae) 



The Wandering Spiders 



This is a small family of spiders, which is composed of forms 

 closely allied to the Clubionidas, but which differ, in most cases, 

 from that family in the arrangement of their eyes. These, 

 except in Titiotus, are situated in three or 

 four transverse rows (Fig. 625). They 

 also differ from the Clubionidae in that 

 the truncate end of the endites is entirely 

 clothed with very dense uneven hairs. 

 As a rule they are two-clawed spiders; 

 but in the genus Cupiennius a third claw 

 is present. 



The members of this family wander 

 about in search of their prey, many of 

 them over the foliage of forests at night. 

 Some of the tropical species are very 

 large. They make no webs for a dwelling, but some species 

 appear to inhabit burrows in the ground. 



The genera represented in the United States can be separated 

 as follows: 



Fig. 62s. 

 HEAD OF CTENUS 



snow i\c 



THE ARK iNGEMENT 



OF l Hi; EYES 



555 



