160 



MALCOLM EVAN MACGREGOR. 



Table IV. 

 The more Important Insect-borne Diseases of Protozoal Origin. 



Organism. 



Host. 



Disease. 



Vector. 



Entamoeba histolytica 



Man 



Amoebic dysentery 



Flies.* 



Lamblia intestinalis 



Man 



Flagellate dysentery 



Flies.* 



Plasmodium malariae . . ! 



Man 



Quartan malaria 



Anopheline mosquitoes.* 



i 

 „ rivax . A 



Man 



Benign tertian 

 malaria. 



Anopheline mosquitoes. * 



„ falciparum . . 



■ 



Man 



Malignant or sub- 

 tertian malaria. 



Anopheline mosquitoes.* 



Leishmania tropica . . | 



Man 



Oriental sore 



Flies, fleas, Pklebotomus 

 ('?), Hippobosca (!). 



„ donovani 



Man 



Kala-azar 



Bed-bugs (?), fleas (?), 

 Triatoma (?). 



„ sp. inc. 



Man 



Espundia 



Probably some tropical 

 blood-sucking insect. 



„ infantum 



Children 



Leishmaniasis 



Fleas. 



Trypanosoma gambiense . . 



Man 



Congo sleeping 

 sickness. 



Tsetse-flies (Glossina pal- 

 jtalis).* 



„ rhodesiense . 



Man 



Rhpdesian sleeping- 

 sickness. 



Glossina morsilans.* 



„ brucei 



Cattle and 

 horses. 



Fly sickness 

 (Nagana). 



Glossina morsitans.* 



,, leivisi 



Rats 



Eat trypanosomiasis 



Rat louse (?), and fleas 

 ( Ceratophyllus fc scialus, 

 Ctenocephalus canis).* 



„ e van si 



Horses, 



mules, 



camels. 



Surra 



Horse-flies (Tabanus 

 striatus). * 



Schizotrypanum cruzi 



Man 



Chagas's disease 



Triatoma (Conorhinus) 

 megistus. * 



Babesia bigeminum 



Cattle 



Red- water fever 



Ticks (Margaropus annu- 

 latus). * 



„ oris 



Sheep 



Piroplasmosis 



Ticks (Rhipicephalus 

 bursa).* 



„ canis 



Dogs 



Malignant jaundice 



Ticks (Rhipicephalus san- 

 guineus, Haemaphy salis 

 leachi).* 



„ caballi 



Horses and 

 mules. 



Piroplasmosis 



Ticks (Dermacentor relicu- 

 latus).* 



Nuttallia equi 



Horses and 

 mules. 



Piroplasmosis 



Ticks (Rhipicephalus 

 evert si).* 



Chlamydozoa (?) .. 



Man 



Ophthalmia 

 acgypticn. 



Flies.* 



