Femeiles 



Domestic dogs (Nuttall 1916. Sudan record above). Waxthog 

 and multimammate mouse (Mastonys ) (Bedford 193 2B). Shrew, civet, 

 and the following rodent si rat (Rattus rattus); creek rat, 

 Pelonys fall ax concolor ; rock rats, A.e^homys spp.; and groove- 

 toothed rat, Otonys tropicalis pretoriae ^Theiler, impublished) , 

 and striped grassmouse , Lemiuscomys s. striatus (Angola specimen 

 mentioned above). ~ 



Immatxire Stages 



Nymphs from raultimammate mice (Equatoria Province records 

 above), and Aethomys spp. (Theiler, unpublished). Larvae from 

 Otomys tropicalis pretoriae (Theiler, unpublished). Unstated 

 stage from kusu or grass rat, Arvicanthis abyssinicus (Theiler, 

 xinpublished). 



BIOLOGY 



The male is unknown. It either takes no blood or feeds for 

 only short periods, and should be searched for especially in 

 rodent nests. Immature stages have been collected from nest- 

 inhabiting rodents and probably eilso feed on insectivores as 

 well. Females parasitize carnivores and the warthog. It is 

 noteworthy that Roberts (1935) did not obtain this tick in his 

 survey of rodent-nest inhabiting ticks in the Nairobi area. 

 See HOSTS above. 



DISEASE RELATIONS 

 Unstudied. 



IDEaJTIFICATION 



The female is readily identified. The anal grooves are 

 horseshoe shaped. The scutum is 1.5 times as long as wide or 

 even longer, widest just anterior of the midlength; it has a 

 moderate number of mostly fine amd a few moderate size puncta- 



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