Superfamily Argiopoidea 



other (Fig. 733). These are smaller spiders than those of the 

 preceding genus, and the colour and markings are very variable. 

 The egg-sac is very different from that of Peuiicia; it is discoid, 

 very flat, and, according to Simon, is strongly fastened like that 

 of Philodromus, but according to F. O. P. Cambridge it is spun up 

 in an irregular web amongst the leaves and twigs. Seven species 

 have been described from the United States. 



Our four better known species are separated by Mr. Banks as 

 follows; the other three are found in the Far West. 



A. Femora with a black line on the under side. 0. salticus 

 AA. Femora without a black line on the under side. 



B. Abdomen light with black side and median stripes. 



0. scalaris 

 BB. Abdomen dark, with a few light spots. 



C. Dorsum of cephalothorax straight, about as high in 



the middle as in the eye-region. 0. cinerea 



CC. Dorsum of cephalothorax higher in the eye-region 



than in the middle. 0. rufipes 



Oxyopes salticus (O. sal'ti-cus). — A very common species in 

 the Southern States, where it is found in early summer running 

 on low bushes. 



Oxyopes scalaris (O. sca-la'ris). — This species has been found 

 from North Carolina northward into New England. 



Oxyopes cinerea (O. ci-ne're-a). This is also found in New 

 England. 



Oxyopes rufipes (O. ru'fi-pes). — A common species in Wash- 

 ington State. 



Genus HAMATALIVA* (Ham-a-tal'i-va) 



In addition to the characters given in the table of genera above 

 it may be noted that the clypeus is very wide; in other words the 

 eyes are remote from the front edge of the clypeus. These spiders 

 are found in the extreme southern part of our territory. 



Hamataliva grisea (H. gris'e-a). — The cephalothorax is a 

 yellowish red-brown, with the eye area darker. The abdomen 

 is thickly clothed with brown and white hairs. In the original 



* The original spelling of this name as Hamataliwa (Keyserling '87 p. 458) is obviously a typo- 

 graphical error; on page 489 of the same paper it is spelled as above. 



660 



