48 



THE COMMON SPIDERS 



middle of the cephalothorax. The abdomen is a little longer 

 and wider than the cephalothorax (fig. 131). The cephalothorax 

 is smoky gray, darker toward the front and darker in males 

 than females. The abdomen is gray, with yellowish markings 

 in a herringbone pattern through the middle. Common under 



stones and leaves at all sea- 

 sons. 



Zygoballus bettini. — This 

 is a very beautifully colored 

 spider, having in life spots of 

 white hairs and shining scales 

 of the color of copper and 

 bronze. The cephalothorax 

 of both sexes is high and wide 

 in the middle and slopes down 

 steeply from the posterior 

 eyes under the front of the 

 abdomen (fig. 132). The top 

 of the cephalothorax between 

 the eyes is nearly square. 

 The posterior eyes are almost 

 the full width of the cephalo- 

 thorax apart, and the front 

 row of eyes is nearly as long. 

 The cephalothorax is dark 

 brown covered with iridescent 

 scales. The legs are pale, 

 except the dark femora of the first pair and dark spots on the 

 ends of the joints of the fourth pair. In the male all the legs 

 are a little darker than in the female and without the spots on 

 the fourth leg. The abdomen of the female is light brown, 

 marked with white in a row of irregular spots. In the male 

 the abdomen is brown, covered with shining scales and with a 



Fig. 



Phidippus multiformis. — Female 

 enlarged six times. 



