IDMTIFICATION 



Use of the following key shotild never be attempted without 

 reference to the section on identification for each species iaen_ 

 tioned in the text. In the identification section, an attempt 

 has been made to present lucidly all important characters of 

 typical specimens and to indicate the range of variability seen 

 in each species. I am most grateful to Mr. Makram N. Kaiser, 

 Chief Technician in the Department of Medical Zoology at U.S. 

 Naval Medical Research Unit, who has served &s a "sounding 

 board" and has given invaluable assistance in grouping the very 

 large n\imbers of specimens that have been studied and often re- 

 stiidied for this section. Special acknowledgement shoiold also 

 be made of the services of Dr. L. P. Delpy, who initially iden- 

 tified many of our early collections of HyaloTOna and of Mr. 

 Glen Kohls who has spent several days conferring over specimens 

 in the Sch\ilze collection, now deposited in the Roclsy Mountain 

 Laboratory at Hamilton, l^ntana. 



Persons attempting to identify field-collected material 

 of Hyalomma should recognize that a certain proportion of spec- 

 imens m many series will defy final determination of species. 

 These had best be called " Hyalomma species" and sent to a capable 

 specialist in the group or put aside for further study as addL- 

 tional infonnation becomes available. 



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