I30 



THE COMMON SPIDERS 



Pholcus cornutus. — A small species from the southern states, 

 with a body about a tenth of an inch long and the legs from 

 half to three-quarters of an inch. The abdomen is humped on 

 the back and short on the under side, so that seen from the side 

 it is nearly triangular (fig. 309). The cephalothorax is as wide 

 as long and nearly circular. The head is small and marked by 



Fig. 30S. Web of Pholcus phalangioides between two shelves in a cellar. 



a shallow groove on each side. In front it is higher than wide 

 and inclined a little forward toward the mandibles. The eyes 

 (fig. 310) are raised a little from the head, three large eyes 

 almost touching each other in a group on each side, and a small 

 pair between them just above the lower eyes of the larger 

 groups. The mandibles are three-quarters as high as the head, 

 with a small tooth on the inner corners and, in the males, a 



