INSECT WEAPONS AND TOOLS 201 



veniences the parasitic visitors, who remain and 

 eat the chrysalis. The latter, it is needless to 



Fig. 134. Ichneumon fly's foot, with claws for 

 holding on 



remark, never becomes a butterfly. Another 

 weapon from another species of ichneumon is 

 shown in Fig. 133. The pair of long hairy organs 

 seen in each illustration are sensitive organs or 



