74 The Structure and Habits of Spiders. 



and at the same time tangles a band of fine 

 threads, C. This band is laid along, and 

 attached here and there to a plain thread, A, B, 

 so as to make it adhere more readily to an 

 insect that happens to touch it. As one leg 

 gets tired, they change, and work with the 

 other. In the webs of these spiders this adhe- 



Fig. 36. 



sive band can be seen with the naked eye, run- 

 ning about, as in Fig. 36. The webs are usually 

 irregular, and shaped to fit the place where they 

 are built, but have, in some part, a tube some- 

 what like that of the grass spider, Fig. 24, 

 where the owner hides. Sometimes they are 

 more or less regular in structure, some of the 



