seventeen of these giraffes and the light to moderate infestations 

 on the remainder of these animals is noteworthy. These data con- 

 tribute to other from this area indicating that the bulk of the A. 

 variegatum population does not commence reproduction tintil well 

 into the rainy season (June, July). 



The presence of two male A. lepidum on these giraffes is of 

 some interest inasmuch as ecological conditions in Bahr KL Ghazal 

 seldom meet this tick»s requirements. A. lepidum populations iji 

 this Province are either small, rare, and restricted, or else 

 introduced but not thriving. From the fact that only a single 

 male R. s. si"ni=i and no R. e. evertsi were taken it would appear 

 that giraffes are not favored hosts of these ticks, which are 

 common on other animals in the area. 



The frequency with which both sexes of H. rufipes and of H. 

 truncatum were foimd on the same hosts from Harch through June 

 iH3Icates breeding of these species late in the dry season and 

 through the first half of the rains. Data for other seasons are 

 not available. The small araoxmt of data for both sexes of H. 

 truncattun feeding in August may indicate that adults continue 

 to appear and mate throughout the rainy season or else that a 

 second generation has reached adulthood later in the rains. 



M. reidi sp. nov. is known only from these collections. 

 Whether it is a typical parasite of giraffes remains to be deter- 

 mined. The small amount of available data suggest that the repro- 

 ductive season commences early in the rains. 



- 812 - 



