CONTENTS 



PAGE 



translator's note .... V 



CHAPTER 



I THE EUMENES I 



II THE ODYNERI 28 



III THE PELOP^LUS 60 



IV THE AGENLE; THE PELOP^US* 



VICTUALS 84 



V ABERRATIONS OF INSTINCT . . 106 



VI THE SWALLOW AND THE SPARROW 1 33 



VII INSTINCT AND DISCERNMENT . 155 



VIII THE NEST-BUILDING ODYNERUS . 1 76 



IX INSECT GEOMETRY 219 



X THE COMMON WASP .... 24O 



xi the common wasp (continued) 270 



XII THE VOLUCELLA 288 



INDEX 313 



