| Chapter I. The Pompili | 963 |
| Chapter II. The Scoliae | 657 |
| Chapter III. A Dangerous Diet | 1252 |
| Chapter IV. The Cetonia Larva | 1181 |
| Chapter V. The Problem of The Scoliae | 676 |
| Chapter IV. The Tachytes | 4343 |
| Chapter VII. Change of Diet | 658 |
| Chapter VIII. A Dig at The Evolutionists | 1215 |
| Chapter IX. Rationing According to Sex | 1012 |
| Chapter X. The Bee Eating Philanthus | 546 |
| Chapter XI. The Method of The Ammophilae | 577 |
| Chapter XII. The Method of The Scoliae | 619 |
| Chapter III. The Method of The Calicurgi | 951 |
| Chapter XIV. Objections and Rejoinders | 706 |