VIII Contents 



The bed-bug. Other bed-bugs. 

 Parasitic Diptera, or flies. 

 Psychodidae, or moth flies. PhlebotominEe. Culicidas, or mosquitoes. 

 SimuKidas, or black-flies. Chironomidae, or midges. Tabanidae, or 

 horse-flies. Leptidas or snipe-flies. Oestrid^, or bot-flies. Muscidse, 

 the stable-fly and others. 

 Siphonaptera, or fleas. 



The fleas affecting man, the dog, cat, and rat. 

 The true chiggers, or chigoes. 



CHAPTER IV 



ACCIDENTAL OR FACULTATIVE PARASITES 131-143 



Acarina, or mites. 



Myriapoda, or centipedes and millipedes. 

 Lepidopterous larvae. 

 Coleoptera, or beetles. 

 Dipterous larvas causing myiasis. 

 Piophila casei, the cheese skipper. Chrysomyia macellaria, the screw- 

 worm fly. CaUiphorinae, the blue-bottles. Muscinae, the house or 

 typhoid fly, and others. Anthomyiidas, the lesser house-fly and others. 

 Sarcophagidse, the flesh-flies. 



CHAPTER V 



ARTHROPODS AS SIMPLE CARRIERS OF DISEASE 144-163 



The house or typhoid fly as a carrier of disease. 



Stomoxys calcitrans, the stable-fly. 



Other arthropods which may serve as simple carriers of pathogenic organisms. 



CHAPTER VI 

 ARTHROPODS AS DIRECT INOCULATORS OF DISEASE GERMS 164-174 

 Some illustrations of direct inoculations of disease germs by arthropods. 

 The r61e of fleas in the transmission of the plague. 



CHAPTER VII 



ARTHROPODS AS ESSENTIAL HOSTS OF PATHOGENIC ORGAN- 

 ISMS 175-185 



Insects as intermediate hosts of tape-worms. 



Arthropods as intermediate hosts of nematode worms. Filariasis and mosqui- 

 toes. 



Other nematode parasites of man and animals, 



CHAPTER VIII 



ARTHROPODS AS ESSENTIAL HOSTS OF PATHOGENIC PRO- 

 TOZOA 186-211 



Mosquitoes and malaria. 

 Mosquitoes and yellow fever. 



