248 



INDEX. 



WoMfartia intermedia, distributiou 

 of, in Russia, 89. 



WoMfartia magmfica, bionomics of, 

 in Russia, 88 ; causing myiasis in 

 cattle, 2. 



WohlfaHia melgeni, distribution of, 

 in Europe, 89. 



WoHJartia tetripunctata, distribu- 

 tion of, in Europe and Central 

 Asia, 89. 



wolcotti, Olfersia. 



Wood Rat (see Neotomafriscipes). 



woodi, Chrysops. 



Worm-nodules, in cattle, caused by 

 Onchocerca gibsoni, 8; distri- 

 bution of, 70. 



Wyeomyia grenadensis, sp. n., from 

 Grenada, 64. 



X. 



Xenopsylla, thick-tailed form of 

 Leishmania not produced in, 174. 



Xenopsylla aequisetosa, on Crice- 

 tomys gambianus in the Gold 

 Coast, 81. 



Xenopsylla astia, percentage of, on 

 rats in Bombay, 75. 



Xenopsylla brasiliensis, percentage 

 of, on rats in Bombay, 75; on 

 rats in Sierra Leone, 150. 



Xenopsylla cheopis, and plague, 4 ; 

 percentage of, on rats in Bombay, 

 75 J distribution of, on rats in 



Java, 128 ; on rats in New Soutb 

 Wales, 182 ; on rats in Nigeria,. 

 66 ; on rats in Sierra Leone, 150„ 



Y. 



Yellow Fever, and Stegomyia fas- 

 ciata in West Africa, 66, 149, 150, 

 165 ; possibility of introduction 

 of, into Australia, 59, 135; and 

 8. fasciata in Ecuador, 149 ; 

 quarantine measures against, in 

 the Gambia, 159 ; campaign 

 against, in Havana and Panama^ 

 99 ; danger of introduction of^ 

 into Morocco, 40 ; distribution- 

 and control of, in the Tropics, 

 12; dengue probably not a 

 mutant of, 149 ; uncertainty as to> 

 causal agent of, 150 ; nature of 

 immunity to, 109. 



Yokohama, use of rat-poison to 

 control plague in, 154. 



z. 



Zalophus californianus (Californian 



Sea-lion), AntarctophtJiirius micros 



chir on, 196. 

 Zizania aquatica (Wild Rice), land 



covered with, not breeding 



mosquitos, 95. 

 Zululand, new Anoplura from, 120 ;; 



Glossina austeniin, 121. 



