The Red Ants 



less, she Is constantly feeling the ground with 

 her antennse. What can be the function of 

 those organs ? I do not know, although I as- 

 sert that they are not olfactory organs. The 

 Ammophila, in search of her Grey Worm, had 

 already led me to make the same assertion; 

 I now obtain an experimental proof which 

 seems to me decisive. I would add that the 

 Pompilus has very short sight: often, she 

 passes within a couple of inches of her Spider 

 without seeing her. 



157 



