CONTENTS 



CHAPTER PAGE 



1. COMMUNAL LIFE .... i 



II. AMMOPHILA AND HER CATERPILLARS 15 



III. THE GREAT GOLDEN DIGGER . . 56 



IV. SEVERAL LITTLE WASPS . 7 2 

 V. CRABRO 97 



VI. AN ISLAND SETTLEMENT . 119 



VII. THE BURROWERS . . .141 



VIII. THE WOOD-BORERS . i7 8 



IX. THE SPIDER-HUNTERS . i9 6 



X. THE ENEMIES OF THE GRASSHOPPER 248 



XI. WORKERS IN CLAY 265 



XII. SENSE OF DIRECTION 275 



XIII. INSTINCT AND INTELLIGENCE . . .292 



