The Volucella 



Then what need is there for the Volucella 

 to disguise herself as a Wasp? Any Fly, 

 whether grey or motley, is admitted to the 

 burrow directly she makes herself useful to 

 the community. The mimicry of the Volu- 

 cella, which was said to be one of the most 

 conclusive cases, is, after all, a mere child- 

 ish notion. Patient observation, continually 

 face to face with facts, will have none of it 

 and leaves it to the arm-chair naturalists, 

 who are too prone to look at the animal 

 world through the illusive mists of theory. 



3" 



