CONTENTS. 



CHAPTER Page 



L What is an Insect ? 1 



n. Of the Structure of Insects in general 6 



III. Sexes and Transformations of Insects 36 



IV. On Classification and Nomenclature 51 



V. Coleoptera, or Beetles 60 



VI. Coleoptera (continued) 101 



VII. Strepsiptera, or Bee Parasites 147 



VIII. Orthoptera (including Grasshoppers, Cockroaches, 



&c.) 156 



IX. Physopoda (Thrips) 178 



X. Neuroptera (including Dragon-flies, Lace-winged 



Flies, Cadis-flies, &c.) J}<&4#.- 184 



XI. Hymenoptera (including Bees, Wasps, Idmeumons, 



Saw-flies, &c.) 220 



XII. Lepidoptera (including Butterflies and Moths) .... 287 



XIII. Diptera, or Two-winged Flies 342 



XIV. Aphaniptera, or Fleas 381 



XV. Khynchota (including Bugs, Frog-hoppers, &c.) . . 384 



XVI. Ametabolous Insects, or Insects undergoing no 



Metamorphosis 421 



