| Chapter I. The Pompili | 99 |
| Chapter II. The Scoliae | 103 |
| Chapter III. A Dangerous Diet | 129 |
| Chapter IV. The Cetonia Larva | 101 |
| Chapter V. The Problem of The Scoliae | 95 |
| Chapter IV. The Tachytes | 87 |
| Chapter VII. Change of Diet | 132 |
| Chapter VIII. A Dig at The Evolutionists | 86 |
| Chapter IX. Rationing According to Sex | 107 |
| Chapter X. The Bee Eating Philanthus | 109 |
| Chapter XI. The Method of The Ammophilae | 109 |
| Chapter XII. The Method of The Scoliae | 116 |
| Chapter III. The Method of The Calicurgi | 89 |
| Chapter XIV. Objections and Rejoinders | 107 |