Specimens natiirally infected with Q fever (Coxiella burnetii) 

 have been found; this species is a vector of the organism and 

 transmits it through all stages inclviding the egg. 



Brucellosis or undulent fever organisms. Brucella melitensis , 

 survive some time in this tick, which is said by some Soviet 

 workers to be a carrier and transmitter of this pathogen. Some 

 Russian studies of ticks as animals sustaining natviral foci of 

 tularemia have negated the importance of K. marginatum (as H. 

 plumbeum) in this regard, although other workers have reported 

 the finding of naturally infected specimens. 



CATTLE ; Theileriasis (Theileria spp.). 



HORSES ; Theileriasis (Theileria equi ) and piroplasiaDsis 

 (Piroplasma caballi ). Transovarial transmission of the latter 

 organism to the seventh generation has been demonstrated. 



GUDJEAPIGS ; Rickettsiae pathogenic to these animals and 

 transovarially transmitted to the F3 generation of H. marginattim 

 have been reported. 



Kales ; The combination of characters for recognizing typical 

 males is: (l) the center of the subanal sliields is directly pos- 

 terior of the central axis of the adanal shields (which are large 

 and broad); (2) the lateral grooves are long, reaching approximate- 

 ly to the eyes, but they are frequently somewhat obscm-ed by dense 

 punctations or by lack of discreteness, especially anteriorly; 

 (3) the scutal punctations are dense and large in the distal and 

 scapular fields, but variable elsewhere, being usually smaller 

 and more shallow and less dense centrally; (/+; the posteromedian 

 groove reaches the scutal midlength, it is narrow anteriorly and 

 wider posteriorly; the paramedian grooves are about half as long 

 as the posteromedian groove and taper from a pointed apex to vfide 

 in the festoon area; a narrow heavily punctate ridge lies between 

 the paramedian grooves and the lateral grooves. 



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