Birds ; Spurwlng geese (tick identification questionable; 

 Bedford 193 2B). Gray hornbill (Lophoceros n. nasutus ) and ground 

 hornbill (Bucorvus abyssinicus ), domestic aSd wild chickens, spur- 

 fowl, guineal'owl ^Tendeiro 1947,194.8,19523). 



Snake ; Bitis arietans (Neumann 1911). 



Snail ; A cvirious case, said to be parasitism by A. variegatum 

 on a snail, Limicolaria adansoni Pfr., in Senegal, has-been reported 

 by Neumann (1911^ and by Andre and Lamy (l93l). This record bears 

 further investigation. 



Nymphal Hosts 



Nymphs feed on a great variety of mammals of medium and large 

 size, including occasionally man. Birds are frequently parasitized 

 but reptiles are rarely attacked. 



Man ; In French West Africa, nymphs do not attack man so 

 frequently as do larvae (Joyeux 1915). In the Sxadan a single 

 nymph was taJcen feeding on man in Bquatoria and several in Bahr 

 KL Ghazal Province. 



DouBstic animals ; Nymphs are common on domestic stock in 

 Kenya (Lewis 193 A) » Survey of our Equatoria and Bahr El GhazeQ. 

 Province records above shows a small number of nymphs on cattle 

 and often many on goats, especially during the dry season. Few 

 were found on other domestic animals, pigs, horses, dogs, and 

 sheep. Sudan Government collections contain nymphs from cattle, 

 sheep, goats, dogs, pigs, donkeys, and horses. Tendeiro (1948) 

 listed cattle and goats as nymphal hosts. Among a collection 

 from Madagascar, Zvunpt (1950B) found nymphs from cattle and dogs. 

 Theiler (correspondence) has specimens from elsewhere in Africa 

 from the same animals as well as from camels and domestic cats. 

 Poxiltry has been listed as a nymphal host by Wilson (1950B), 

 Tendeiro (1948), Hoogstraal (1953E), and we foxmd this stage on 

 chickens and turkeys in the Sudan (records above). Daubney and 

 Hudson (193 1A.,B, 1934) referred to the comparative rarity of im- 

 mature stages on sheep in Kenya. Fiasson (1943B) noted immatxare 

 specimens on sheep at Libreville. 



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