HOSTS 



All domestic animals are attacked by adxilts of this tick. 

 Available data does not indicate that among these animals H. 

 impeltat-um shows any marked host predilection. In Egypt a"" 

 number of specimens have been taken feeding on personnel during 

 field trips. 



Wild animals known to be infested are gazelles in Egypt 

 (HH), wild pig in Eritrea (HH), rhinoceros and wildebeest in 

 Tanganyika (Walker records above), and caracal in French West 

 Africa (Villiers 1955). 



Hosts of immature stages are rodents, hares, birds, and 

 man. At Amara, on the Tigris River in Iraq, Lt. R. A. Bircton 

 reared adults from nymphs taken from hares and from a redstart, 

 P. phoenicurus (= Ruticilla pluvenicurtis ) (Nuttall lots 3239 

 and 3240 in H^INH) . 



In Egypt we have reared many adults from nymphs that have 

 dropped from both the lesser and the greater Egyptian gerbils, 

 Gerbillus ^. gerbillxis and G. £' pyramidum , and fewer from the 

 following animals : lesser Egyptian jerboa, Jaculus j. jaculus ; 

 fat sandrat, Psammomys 0. obesus ; Egyptian hare, Lepus capensis 

 aegypticus ; and man. 



Although Rousselot (194-8) reared this species, he furnished 

 no data on the hosts of the immature stages either in the labo- 

 ratory or in the field. 



BIOLOGY 



Life Cycle 



Rousselot (1948) claimed that H. impeltatum (= H. brumpti ) 

 is a three^host species that in his^French West Afri'ca laboratory 

 completed its life cycle in about three months. Results of 

 studies in NA1-QIU_3 (Cairo) laboratories will be presented when 

 completed. 



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