| Chapter I. The Pompili | 280 |
| Chapter II. The Scoliae | 239 |
| Chapter III. A Dangerous Diet | 270 |
| Chapter IV. The Cetonia Larva | 247 |
| Chapter V. The Problem of The Scoliae | 250 |
| Chapter VII. Change of Diet | 273 |
| Chapter VIII. A Dig at The Evolutionists | 199 |
| Chapter IX. Rationing According to Sex | 250 |
| Chapter X. The Bee Eating Philanthus | 238 |
| Chapter XI. The Method of The Ammophilae | 249 |
| Chapter XII. The Method of The Scoliae | 216 |
| Chapter III. The Method of The Calicurgi | 224 |
| Chapter XIV. Objections and Rejoinders | 255 |