88 



ZOOLOGY 



4. Tube- weavers (Tubitelarue 1 ). Here belong the 

 spiders that spin webs in the grass, which are so conspicuous 

 in the morning when laden with dew (Fig. 86). At one 

 side of the web a tube leads down among the grass stems. 

 At the opening of this tube the spider stands ready to 



FIG. 85. Web of Theridium, a " cobweb." From Emerton. 



dart out after prey, or to retreat as occasion demands 

 (Fig. 87). 



The wandering spiders do not spin webs of any kind. 

 They are classified into three groups as follows : 



1 tubus, tube ; tela, web. 



