Feldman-Muhsam (195^) states "The type specimens of H. dro^_ 

 darii asiaticum as well as H. asiatlcum citripes differ from H. 

 dromedarii and are not synonyms of H. dromedarii ". Without further 

 explanation, it is impossible to evaluate this remark. 



DISEASE RELATIONS 



MAN: A host and vector of Q fever (Coxiella burnetii ). 



Experimentally, this tick can be infected with the virus of 

 Russian spring- summer encephalitis, with the virus of ncsquito- 

 bome autumn encephalitis from the Russian Maritime Province, 

 and with the virus of a Japanese mosquito- borne encephalitis. 



CATTLE: Theileriasis (Theileria spp.). This tick (as H. 

 asiaticum ) is apparently not a carrier of brucellosis (Brucella 

 spp. J. 



CAlffiLS: Theileriasis (Theileria camelensis ). 



IDENTIFICATION 



Males ; Typical males are recognized by (l) large size 

 (average length: 5.7 ram., range 5-2 mm. to 7.0 mm.; average 

 width: 3.8 mm., range 3.0 mm. to ^.0 ram.), (2) distinct lateral 

 displacement of the subanal shields, (3) short, deep lateral 

 grooves limited to the posterior third of the scutum; and (U) 

 few, large shallow pvinctations variously scattered over the 

 surface and complete or almost complete absence of other puncta. 

 tions. Also distinctive is the deep, usually narrow, postero- 

 median groove extending from the distinct parma to the scutal 

 mldlength. This groove is bounded on either side by converging 

 ridges; laterad of these ridges are deep, wide, often rugose 

 paramedian grooves. The paramedian grooves are of variable 

 length, and posteriorly delineate the two median pairs of fes- 

 toons, which are often massive and which are larger than the 

 more or less distinct three lateral pairs of festoons. Another 

 pair of parallel ridges may be present between the paramedian 

 grooves and the lateral grooves. 



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