CONTENTS 



I'AQE 



Preface to the Second Edition v 



Preface to the First Edition ...... vii 



CHAPTER I 

 Some Aspects of Morphology ...... 1 



Segmentationof the Head. Wing Venation. The Metameric 

 Appendages. 



CHAPTER II 



Some Aspects of Morphology (continued) .41 



The Metameric Appendages {continued). The Genitaha. 

 Literature. 



CHAPTER III 



Metamorphosis 51 



Berlese's Theory. Types of Larv?e. General Remarks on 

 Insect Metamorphosis. Literature. 



CHAPTER IV 



Palaeontology 72 



Introduction. Orders only known as Fossils. The Geo- 

 logical History of Insects. The Phylogeny of Recent and 

 Fossil Orders of Insects. Literature. 



CHAPTER V 

 The Sense Organs and Reflex Behaviour .108 



Introductory Remarks. The Eyes and Light Perception. 

 Chemical Stimuli and their Receptor Organs. 



CHAPTER VI 

 The Sense Organs and Reflex Behaviour (continued) . .139 

 The Tactile Sense. Chordotonal Organs and Reactions to 

 Vibrations. General Stimulatory Organs. Reflex Behaviour 

 and Practical Entomology. Literature. 



CHAPTER VII 

 The Fundamental Aspect of Coloration .172 



Structural Colours. Pigmentary Colours. Combination 

 Colours. Further Remarks on Insect Coloration. 

 Literature. 



R.A. ENTOMOLOGY. ix b 



489 >>t^ 



