Man (Nuttall and Warburton 1908). 



Wild animals: Baboon (Nuttall and Warburton 1908, Massey 1908). 

 HaxeHiewis 15515). Waterbuck, steinbuck, and hare (Lewis 19313). 

 Duiker (Massey 1908, Schwetz 192X, Bequaert 1931). Congo civet 

 (Sudan record above). Damalisus korrigum ugandae (Uganda material 

 noted above). 



BIOLOGY 



I cav ipalpus belongs to the group within the genus Ixodes in 

 which'males and i'emales are usually found together, not necessarily 

 in copula, on either a "wandering" or a "fixed habitat" host (Nuttall 

 - ^ Wkrbu rton 1911). The immature stages are not known. In Angola, 

 Sousa Dias (1950) collected "several females but only a single male . 

 Massey «s specimens from a baboon consisted of two males and seven 

 females. In Northern Rhodesia, Matthysse (1954) obtained a few 

 collections of adults from cattle only in October and November. 

 We obviously know very little about the biology of I. cavipalpv 



DUS. 



It appears likely that this species inhabits forested or wooded 

 savannah areas rather than open savannah country. 



DISEASE RELATIONS 



Ixodes cavipalpus has been taken feeding on a human child but 

 is not known to transmit pathogenic organisms. 



REMARKS 



Nuttall and Warburton' s (1911) key to Ixodes is confusing at 

 couplet 10 (male) in that to reach I. cavipalpus one must consider 

 coxa I as having no spur. A small spur is, however, indicated on 

 coxa I in Nuttall and Warburton's descriptions of this species, 

 is present in our Sudan specimens, and, according to Theiler (cor- 

 respondence) and Arthur (ms.), occurs on East African specimens m 

 their collections. It also occurs in material from the Belgian 

 Congo in our collection. 



- 5A2 - 



