TABLE OF CONTENTS. 



Page. 



Introduction 1 



Early accounts of mosquitoes 8 



Mosquitoes as pests 8 



Early accounts of the biology and structure of mosquitoes 20 



Structure of the adult mosquito 25 



The head 25 



The eyes 25 



The antennae 26 



The clypeus 36 



The proboscis 37 



The palpi 50 



The thorax 55 



The prothorax 55 



The mesothorax 57 



The metathorax 59 



The wings 60 



The legs 62 



The abdomen 67 



The abdomen of the female 67 



The abdomen of the male 69 



The scales 71 



The internal anatomy of mosquitoes 75 



Gross anatomy 75 



The alimentary canal 75 



The reproductive system 79 



The fat body 79 



The tracheal system 80 



Histology 80 



The alimentary canal and appendages 80 



The reproductive system 83 



The larva 84 



Head and mouthparts 84 



The eyes 87 



The thorax 88 



The abdomen 88 



The respiratory organs 89 



Modifications of larval structures 91 



Adaptations of the mouthparts of Culicid larvae to the predaceous 



habit 95 



Moulting and the number of larval stages 97 



The pupa 99 



Eclosion of the imago 103 



Habits of adult mosquitoes 106 



The food habits 106 



Mosquito songs and their power of hearing 114 



Time of activity 118 



Longevity 118 



Hibernation and aestivation 119 



Mating habits 120 



Abundance of mosquitoes 132 



Mosquitoes in the far North 135 



Eggs and oviposition 140 



Habits of the larvae 146 



Food of mosquito larvae 150 



Hibernation of mosquito larvae 154 



The pupal period 155 



ili 



