CONTENTS 



CHAI 



I. C\ kSSIFK \ 1 1'\ r 



II. ANATOMY AND PHYSIOLOO\ 27 



III. Di \ i i OPMENT 129 



IV. ADAPTATIONS OP AQUATIC INS# i 165 

 \". COLOR AND COLORATION. . 172 



\T. ADAPTIVE COLORATION 194 



VI I. INSECTS IN RELATION TO PLANTS 212 



VIII. INSECTS IN RELATION TO OTHER ANIMALS 233 



I X . TRANSMISSION OF DISEASES BY INSECTS 248 



X. INTERRELATIONS OF INSECTS 270 



XI. INSECT BEHAVIOR 302 



XII. DISTRIBUTION 322 



XIII. INSECT ECOLOGY 348 



XTY. INSECTS IN RELATION TO MAN 410 



LITERATURE. 430 



INDEX 479 



VII 



