202 



THE COMMON SPIDERS 



three lines on the cephalothorax and a middle dark stripe 

 on the abdomen, with a light silvery stripe on each side. 



The male is smaller and more slender, with the legs longer. 

 The male palpi are one-half longer than the cephalothorax, the 

 femur forming nearly half its length (fig. 466). 



Tetragnatha laboriosa. — -"A little smaller than extensa, with 

 shorter legs and mandibles, the latter short enough in the 



Fig. 460. The same web shown in Fig. 459, treated so as to show the inner spiral 



and the hole in the middle of the web. 



female to be almost vertical (fig. 463). The abdomen is pro- 

 portionally longer than in externa, usually in the females three 



