i68 



THE COMMON SPIDERS 



The cephalothorax and abdomen are both slightly longer than 

 in trivittata, and the color is more uniform. The cephalothorax 

 is dull yellow, with a middle and two lateral stripes, but these 



are often absent in 

 light specimens. The 

 legs are colored like 

 the cephalothorax, 

 sometimes a little 

 darker at the ends of 

 the joints. The abdo- 

 men has a middle dark 

 stripe, at the sides of 

 which are two narrow 

 bright yellow lines, 

 which are sometimes 

 bordered with red. 

 Outside of the middle 

 stripes are six pairs of 

 black spots partly sur- 

 rounded by yellow. On 

 the under side the ster- 

 num has a yellow stripe 

 in the middle, and the 

 abdomen two curved 

 yellow marks, which 

 may be broken into 

 spots. In the male 

 the body is longer and 

 narrower than in the femiale and longer than the male trivittata, 

 and the tibiae of the second legs are a little thickened and curved 

 as in trivittata. 



Epeira insularis or marmorea. — The adult females are half to 

 three-quarters of an inch long, the abdomen large and oval, and 



I'iG. 3^7. Web of Epeira insularis, with nest above 

 covered with leaves and several threads leading 

 from the nest to the center of the web. One-third 

 the real size. 



