| | | 1 | (4) |
| 2 The Relation of Insects to Humans | | | 5 | (19) |
| 3 The Anatomy, Physiology, and Development of Insects | | | 24 | (50) |
| | | 74 | (17) |
| 5 Classification, Nomenclature, and Identification | | | 91 | (10) |
| 6 Phylum Arthropoda: Arthropods | | | 101 | (45) |
| | | 146 | (18) |
| 8 The Entognathous Hexapods: Protura, Collembola, and Diplura | | | 164 | (7) |
| 9 The Apterygote Insects: Microcoryphia and Thysanura | | | 171 | (4) |
| 10 Order Ephemeroptera: Mayflies | | | 175 | (12) |
| 11 Order Odonata: Dragonflies and Damselflies | | | 187 | (16) |
| 12 Order Grylloblattaria: Rock Crawlers | | | 203 | (2) |
| 13 Order Phasmida: Walkingsticks and Leaf Insects | | | 205 | (3) |
| 14 Order Orthoptera: Grasshoppers, Crickets, and Katydids | | | 208 | (19) |
| 15 Order Mantodea: Mantids | | | 227 | (2) |
| 16 Order Blattaria: Cockroaches | | | 229 | (5) |
| 17 Order Isoptera: Termites | | | 234 | (8) |
| 18 Order Dermaptera: Earwigs | | | 242 | (5) |
| 19 Order Embiidina: Web-Spinners | | | 247 | (3) |
| 20 Order Plecoptera: Stoneflies | | | 250 | (8) |
| 21 Order Zoraptera: Zorapterans | | | 258 | (2) |
| 22 Order Psocoptera: Psocids | | | 260 | (15) |
| 23 Order Phthiraptera: Lice | | | 275 | (9) |
| | | 284 | (28) |
| 25 Order Homoptera: Cicadas, Hoppers, Psyllids, Whiteflies, Aphids, and Scale Insects | | | 312 | (38) |
| 26 Order Thysanoptera: Thrips | | | 350 | (7) |
| 27 Order Neuroptera: Alderflies, Dobsonflies, Fishflies, Snakeflies, Lacewings, Antlions, and Owlflies | | | 357 | (13) |
| 28 Order Coleoptera: Beetles | | | 370 | (109) |
| 29 Order Strepsiptera: Twisted-Wing Parasites | | | 479 | (3) |
| 30 Order Mecoptera: Scorpionflies and Hangingflies | | | 482 | (7) |
| 31 Order Siphonaptera: Fleas | | | 489 | (10) |
| | | 499 | (77) |
| 33 Order Trichoptera: Caddisflies | | | 576 | (12) |
| 34 Order Lepidoptera: Butterflies and Moths | | | 588 | (77) |
| 35 Order Hymenoptera: Sawflies, Parasitic Wasps, Ants, Wasps, and Bees | | | 665 | (80) |
| 36 Collecting, Preserving, and Studying Insects | | | 745 | (45) |
| Glossary | | 790 | (19) |
| Index | | 809 | |
