CONTENTS 



CHAPTER PAGE 



I. COMMUNAL LIFE i 



II. AMMOPHILA AND HER CATERPILLARS . 15 



III. THE GREAT GOLDEN DIGGER ... 56 



IV. SEVERAL LITTLE WASPS . . . . 72 

 V. CRABRO ....... 97 



VI. AN ISLAND SETTLEMENT . . . . 119 



VII. THE BURROWERS ...... 141 



VIII. THE WOOD-BORERS 178 



IX. THE SPIDER-HUNTERS . . . 196 



X. THE ENEMIES OF THE GRASSHOPPER . 248 



XI. WORKERS IN CLAY . . 265 



XII. SENSE OF DIRECTION . 275 



XIII. INSTINCT AND INTELLIGENCE . . . 292 



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