276 



INDEX. 



Willows, planted in Algeria against 



mosquitos, 114. 

 Wisconin, Dermacentor nigroli- 



neatus in, 162. 

 Wohlfahrtia balassogloi, parasitic 

 on locust eggs, 151. 

 , , ( Sarcophaga ) m agnifica , 



infesting sheep, 151; 

 causing liuman 

 myiasis, 175. 

 Wolf, Eaemaphysalis cornigera on, 



154. 

 Woodchuck {Marmota flaviventer), 



and spotted fever, 102. 

 Woolfia, hindering growth of mos- 

 quito larvae, 142. 

 Worms, Parasitic, flies carrying 



eggs of, 191, 222. 

 Wiirttemberg, warbled hides in, 



160. 

 Wyeomyia smithii, 22, 119. 

 AVyoming, Dermacentor albipictus 

 in, 161 ; spotted fever in, 101. 



Xenopsylla cheopis, bionomics of, 

 88 ; common rat flea of Havana, 



7 ; on human beings in Java, 

 90 ; on rats in Rhode Island, 

 186 ; Nematode larvae in, 165 '. 

 transmitting plague in Java, 87 ; 

 true host of Trypanosoma lewisi, 

 131. 

 Xiphocolaptes alhicollis, Mydaea 

 parasitic on, 133. 



YeUow-backed tick (see Bhipice- 

 phalus pulchellus). 



Yellow Fever, in Jamaica, not 

 endemic, 112; Panama Canal 

 possibly causing spread of, 143, 

 224, 231 ; in Senegal, pro- 

 phylaxis of, 52. 



Zanzibar, chigger flea endemic in, 



30 ; leprosy in, 54 ; Bhipice- 



phalus pulchellus in, 156. 

 Zebra, Bliipicephahis pulchellus on, 



156. 

 Zebu, Haemaphysalis on, 154. 

 Zululand, Stomoxys calcitrans in, 



153 ; Trypanosoma rhodesienee 



in, 184. 



