has not established itself in these places, I failed to find it 

 in the French Somaliland semidesert. 



In the Svidan, A. lepidum is coraraon in the central grasslands 

 axid in less rigorous seraideserts but quickly disappears with the 

 approach of extreme desert conditions. It also becomes more rare 

 in mixed forest and in forested savannah country. Except for a 

 few specimens mentioned in the paragraph below, fewer than ten 

 specimens have been fouxid in Sudanese aresLS with over fifty 

 inches annual rsiinfall (see Bahr el Ghazal records above). 



The presence of this tick at Katire and Gilo, in the high 

 rainfall area of the Imatong Mountains, is difficult to explain. 

 These specimens were taken from cattle said to have been in the 

 Imatongs for '"a long time", but most cattle, sent as adults, 

 were soon slaughtered as required for lurabermill workers there. 



Although k. lepidum thrives in moderately low rainfall areas, 

 it should be borne in mind that in the central grasslands, where 

 this species is common, hosts often graze in marshy areas for 

 months during the wet season, and that the dry season grazing 

 area (toich) is also mucky for extended periods. Just where and 

 when these animals acquire their infestations would be of interest, 



DISEASE RELATIONS 



In the Sudan, one frequently finds that large, ugly sores 

 have developed on cattle and horses at the site of attachment 

 of A. lepidvun . 



REMARKS 



Features of haller's organ of A. lepidum were noted by Schulze 

 (1941), vho also (195OA) discussed the dentition of this species. 



IDENTIFIDATION 



Male ; The eyes are small, hemispherical, dark, and in a- 

 depression (i.e. orbited), Scutal ornamentation is as illustrated 



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